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    Food » Cakes 'n Pies » Peanut Butter Cinnamon Oatmeal Mug Cake + Giveaway

    Peanut Butter Cinnamon Oatmeal Mug Cake + Giveaway

    Posted: 10/07/2015 | Last updated: 06/04/2022 by Erin 102 Comments
    Post may contain affiliate links via Amazon Associates or other programs. (Disclosure)

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    peanut-butter-cinnamon-oatmeal-mug-cake-recipe-05

    Mug cakes are both wonderful and dangerous things.  A few tablespoons of ingredients, a couple of minutes in the microwave, and poof: you've got a warm personal-sized mug of delicious, sweet goodness.  There's a billion and three different types of Oat Recipes that can be made, but this one just rose to the top as my favorite.  It's not rubbery or spongy like a lot of microwave cakes, mostly due to the lack of egg and addition of oats in the batter.  It's cinnamon-y and comforting and, oh, the best part: it has a warm melted peanut butter center.

    peanut-butter-cinnamon-oatmeal-mug-cake-recipe-01

    The term "mug cake" is a catch-all phrase to describe any single serving cake that can be made in the microwave, but you can use any small microwave safe container.  I like to use my 8-ounce ramekins, which are the perfect size for this recipe.  I added Bob's Red Mill Organic Oats which become nice and soft (but not soggy!) and lend a hearty yet light baked oatmeal-esque texture to the cake.

    peanut-butter-cinnamon-oatmeal-mug-cake-recipe-02

    Everything comes together in no time and gets a dollop of my favorite peanut butter ever, Peanut Butter & Co. Cinnamon Raisin Swirl,  right in the center.  I've talked about this peanut butter before and though I try a metric ton of new nut butters each year, nothing has managed to knock this one off of its throne.  I just love it to death.

    peanut-butter-cinnamon-oatmeal-mug-cake-recipe-03

    After about 90 seconds in the microwave (your cook time may vary - see recipe below) this is what the finished cake looks like.  Though I understand how difficult this might be, you'll want to let it cool for several minutes before digging in, because it will be very, very hot.

    peanut-butter-cinnamon-oatmeal-mug-cake-recipe-04a

    When you dig into the center you'll discover the molten core of warm and melted-y peanut butter.

    peanut-butter-cinnamon-oatmeal-mug-cake-recipe-06

    Print
    clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

    Peanut Butter Cinnamon Oatmeal Mug Cake


    ★★★★★

    4.6 from 8 reviews

    • Author: Erin Browne
    • Total Time: 4 mins
    • Yield: 1 mug cake 1x
    Print Recipe
    Pin Recipe

    Ingredients

    Scale
    • 3 TBS milk
    • 1 TBS vegetable or canola oil
    • 1 TBS granulated sugar
    • 3 TBS all-purpose flour
    • 1 ½ TBS Bob's Red Mill Organic Rolled Oats*
    • ¼ tsp baking powder
    • ⅛ tsp salt
    • ¼ tsp (heaping) ground cinnamon
    • ⅛ tsp ground nutmeg
    • 1 TBS Peanut Butter & Co. Cinnamon Raisin Swirl Peanut Butter**

    Instructions

    1. Using an 8-ounce (or larger) mug or ramekin, mix together milk, oil, and sugar.
    2. Add the flour and stir until smooth.
    3. Stir in oats, baking powder, salt, cinnamon, and nutmeg.
    4. Drop nut butter on top of the batter.
    5. Microwave on full power for 30 seconds and then in 15 second bursts. If cake begins to bubble to the top of the container, stop microwave briefly and allow it to settle before continuing.
    6. Cake is done when the top is no longer sticky and springs back when pushed.
    7. Allow to cool before eating - it will be very, very hot!

    Notes

    *Any brand of oats may be substituted
    **Any brand or flavor of nut butter may be substituted - use your imagination!

    • Prep Time: 2 mins
    • Cook Time: 2 mins

    Did you make this recipe?

    Share a photo and tag @ebrowniebites on Facebook or Instagram

    Recipe Card powered byTasty Recipes

     

    peanut-butter-oatober-giveaway

    fg2

    #Oatober Peanut Butter & Co. and Bob's Red Mill Giveaway

    Peanut Butter & Co. and Bob's Red Mill are offering a fun gift pack to one of our readers!  The winner will receive a package of Bob's Red mill Organic OldFashioned Rolled Oats, a jar of Cinnamon Raisin Swirl, and a jar of Old Fashioned Crunchy.  The contest ends Sunday, November 1st at 11:59pm Eastern Time. Winners will be contacted via email.

    Here’s how to enter:

    1. Leave a comment on this post and tell me your favorite things about month of October! – mandatory
    2. Follow @ebrowniebites (me!) and @peanutbutterco on Instagram – optional for an extra entry.  Leave an additional comment telling me you’ve followed both accounts or are already a follower!
    3. Tweet about this giveaway!  Make sure to use the hashtag #Oatober and link to this blog post.  Here’s a shortened link to use: http://goo.gl/jfw5QH  – optional for an extra entry.  Leave an additional comment with a link to your tweet!
    4. Subscribe to our email updates!  Find the sign-up box in the sidebar. – optional for an extra entry.  Leave an additional comment telling me you’ve subscribed or that you are already a subscriber!

    Here’s a handy Pinterest-optimized image for you if you want to save this recipe for later – just hover your mouse over the image and click “Pin it”!

    My new favorite mug cake! Egg-less batter that does not get rubbery in the microwave - full of cinnamon-y oats and a warm melted core of peanut butter.

    We were provided the oats and peanut butter to create a recipe celebrating #Oatober – we do not accept compensation or free product in return for a fully positive post.  Remember our motto – if it sucks, we’ll tell ya!

    Related posts:

    1. Gluten Free Pumpkin Spice Peanut Butter Mini Muffins + Giveaway
    2. No Bake White Chocolate Peanut Butter Cookies | Peanut Butter & Co. Review
    3. Dog Birthday Cake Recipe Without Peanut Butter
    4. No Bake Strawberry Peanut Butter Fluff Pie
    « Sweet Cornbread Cake With Buttermilk Ice Cream
    Toasted Coconut Oreos Are Everything Good In The World »

    About Erin

    Erin is a mom of two human babies and two fur-covered babies. She loves comfy clothes, eats too much peanut butter, and watches excessive amounts of Netflix. Make her day and toss her a like on Facebook or follow her on Instagram. Post may contain affiliate links including those via the Amazon Associates program

    Reader Interactions

    Comments

    1. Dan

      October 21, 2022 at 12:23 am

      Great recipe. Left out the nut butter because I didn't have any, but it was pretty tasty without. Wish there'd been more!

      ★★★★

      Reply
    2. kiki

      May 07, 2022 at 10:10 am

      Loved it! So easy and tasty 🙂

      ★★★★★

      Reply
      • Lethabo

        October 14, 2022 at 10:02 am

        The batter seemed a bit paste-y, I don't know if it should be like that. But I really enjoyed it. Its super tasty!

        ★★★★

        Reply
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      October 07, 2017 at 2:46 pm

      I love the crunchy leaves and acorns on the sidewalks!

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    9. Candie L

      November 01, 2015 at 11:39 pm

      I love October because the weather starts cooling off. Thank you

      Reply
    10. Sand

      November 01, 2015 at 11:25 pm

      I love the change in the weather.

      Reply
    11. Brian E.

      November 01, 2015 at 10:10 pm

      Thank You for the giveaway…we love when October arrives for two reasons: college football season, and Summer finally ends for us here in the desert southwest i.e. cool weather !!!

      Reply
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      November 01, 2015 at 9:44 pm

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      November 01, 2015 at 9:41 pm

      I love all things Fall and October is my favorite- I love all pumpkin flavor foods and I love the colorful leaves and the brisk air!

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      November 01, 2015 at 7:50 pm

      my favorite things about October is the cooler weather,halloween, and everything pumpkin flavor !

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    19. autumn b

      November 01, 2015 at 3:35 pm

      I love everything pumpkin flavored!!

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      October 31, 2015 at 4:14 pm

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      October 30, 2015 at 9:45 pm

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      October 29, 2015 at 8:26 pm

      I love the fall temperatures.

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      October 28, 2015 at 3:33 pm

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    38. Sadie B.

      October 28, 2015 at 9:54 am

      My favorite thing about October are the leaves and pumpkins we see everywhere.

      Reply
    39. Danielle Marie

      October 25, 2015 at 4:05 am

      it is a tie between cardigans and pumpkin spice everything.

      Reply
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      October 25, 2015 at 12:16 am

      I love cool morning runs!

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      October 24, 2015 at 6:56 pm

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    42. Holly

      October 24, 2015 at 6:53 pm

      Eating all that trick or treat candy and the beautiful fall leaves!

      Reply
    43. Amy Z.

      October 23, 2015 at 8:43 pm

      I love the cool weather and Halloween!

      Reply
    44. Julie

      October 21, 2015 at 10:11 pm

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      Reply
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      October 20, 2015 at 2:21 am

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      October 18, 2015 at 7:42 pm

      My favorite part of October is seeing the leaves change and going apple picking and eating everything pumpkin and squash!!

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      October 18, 2015 at 5:00 pm

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      October 12, 2015 at 11:20 pm

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      October 12, 2015 at 11:44 am

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    59. Susan Christy

      October 12, 2015 at 11:43 am

      Usually it's Halloween but this year it's going to be seeing my niece that's coming home to visit.

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    62. Ashley

      October 12, 2015 at 6:54 am

      I like carving pumpkins and decorating for fall

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      October 11, 2015 at 9:14 pm

      I'm following you both on IG

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    64. Stephanie Coldwell

      October 11, 2015 at 9:13 pm

      I love October because of all the Halloween decorations!!

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      October 11, 2015 at 11:27 am

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      October 11, 2015 at 11:25 am

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      October 11, 2015 at 11:24 am

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      October 11, 2015 at 10:23 am

      my favorite thing is football season!

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    70. Lauren

      October 10, 2015 at 6:40 pm

      I like all the pumpkin flavored foods.

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      October 09, 2015 at 9:40 pm

      I love the cooler weather and apple picking!

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      October 09, 2015 at 9:33 pm

      I love the cooler weather and carving pumpkins

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    74. Debbi Wellenstein

      October 09, 2015 at 6:34 pm

      My favorite thing about October? Halloween!

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    75. Tari Lawson

      October 09, 2015 at 5:27 pm

      I love Halloween. We go to a Halloween party with friends which is so much fun. I also decorate my house Halloween day for my trick-or-treaters.

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    76. N

      October 09, 2015 at 3:22 pm

      Following both on Instagram
      favorite things about October is where i am the weather starts warming up! lambs are out and spring flowers

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    77. Denise S

      October 09, 2015 at 12:55 pm

      My favorite thing is the cooling weather and Halloween candy.

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    78. Joan Kubes

      October 09, 2015 at 9:51 am

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      ★★★★★

      Reply
    79. Joan Kubes

      October 09, 2015 at 9:50 am

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      ★★★★★

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    80. Joan Kubes

      October 09, 2015 at 9:48 am

      I follow @ebrowniebites and @peanutbutterco on Instagram

      ★★★★★

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    81. Joan Kubes

      October 09, 2015 at 9:47 am

      My favorite thing about October is decorating for fall and Halloween.

      ★★★★★

      Reply
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      October 09, 2015 at 8:34 am

      Following on Instagram - stoopidgerl

      Reply
    83. Kimmy Ripley

      October 09, 2015 at 8:33 am

      I love getting dressed up for Halloween with my daughter. This year she is going to be a gumball machine and I am a Lisa Frank rainbow leopard!

      Reply
    84. Bridgette Kolesarwilliams

      October 09, 2015 at 1:13 am

      It's breast cancer awareness month. You get to wear warmer clothes, so new shopping. And the fall leaves.

      Reply
    85. Sandra S

      October 08, 2015 at 11:28 pm

      My favorite thing about October is my birthday! Next favorite is Halloween... I love seeing all the little guys and gals in their costumes..
      Thanks for the giveaway.

      ★★★★

      Reply
    86. LAMusing

      October 08, 2015 at 10:23 pm

      I like the cooler weather - although right now in southern California it's in the high 80's 🙁

      Reply
    87. Kara @ K&R Adventures

      October 08, 2015 at 11:26 am

      I am subscribed!!

      Reply
    88. Kara @ K&R Adventures

      October 08, 2015 at 11:25 am

      I follow both on da 'Gram.

      Reply
    89. Kara @ K&R Adventures

      October 08, 2015 at 9:55 am

      Pumpkin Everything! And Fall colors in the mountains. And cooler weather.

      Reply
    90. Amy L

      October 08, 2015 at 8:56 am

      I shared this on twitter
      https://twitter.com/amylou61/status/652105128208695296

      Reply
    91. Amy L

      October 08, 2015 at 8:51 am

      My favorite thing about October is the fall colors.

      Reply
    92. Dandi D

      October 07, 2015 at 4:58 pm

      I am already a subscriber.

      Reply
    93. Dandi D

      October 07, 2015 at 4:58 pm

      I shared: https://twitter.com/dandidaffyhill/status/651863962254905344

      Reply
    94. Dandi D

      October 07, 2015 at 4:56 pm

      Followed both on Instagram as @fiddlindandi.

      Reply
    95. Dandi D

      October 07, 2015 at 4:55 pm

      My favorite things about October are the smells, the colors, and football!

      Reply
    96. Liz S.

      October 07, 2015 at 11:47 am

      My favorite things about the month of October are the fall foliage and baked goods.

      Reply
    97. Cheryl

      October 07, 2015 at 11:33 am

      Subscribed to Brownie Bites Blog email updates.

      Reply
    98. Cheryl

      October 07, 2015 at 11:33 am

      Following ebrowniebites and peanutbutterco on Instagram {cherylfahling}.

      Reply
    99. Cheryl

      October 07, 2015 at 11:32 am

      My favorite things about the month of October are Breast Cancer Awareness and Halloween.

      Reply
      • Hannah

        August 29, 2020 at 9:25 am

        This is delicious! I'm a freshie in college, and this is often my breakfast (or dinner if I'm lazy) and it's fantastic! I made up about 80 servings of all the dry ingredients and just scoop some into a mug with oil, milk, and PB.

        It's also impossible to mess up. I don't measure and it looks different each time, but always tastes so good. Thank you for this recipe!

        Reply
    100. Jessica Bishop

      October 07, 2015 at 8:51 am

      My favorite thing about October is going to the pumpkin patch with my church!! I already follow both you and peanut butter co. on Instagram, and I also receive your email updates!

      Reply

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    Hi, I'm Erin! I love food and I bet you do, too! I cook for my family and share the recipes that we love. We also like to camp, so there will be a fair bit about that around here, too.

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