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Peanut Butter Rice Krispie Bars

  • Author: Erin
  • Total Time: 10 mins
  • Yield: 12 treats 1x


Perfectly chewy yet soft peanut butter Rice Krispie bars add a robust roasted peanut flavor to a simple universally-loved treat.


  • 4 TBS salted butter
  • 1/2 cup smooth peanut butter
  • 1 10-ounce bag mini marshmallows
  • 5 cups crispy rice cereal (Rice Krispies or similar)
  • 1 tsp pure vanilla extract
  • Chopped peanuts for topping. optional


  1. In a heavy-bottomed pan over low heat, melt the butter and peanut butter.
  2. Add the marshmallows and stir with a non-stick spatula until fully melted.  Add the vanilla extract and mix until combined.
  3. Remove from heat and add the cereal in 3 additions, mixing with the non-stick spatula until cereal is fully coated.
  4. Lightly press into the prepared pan.  Add chopped peanuts to the top, if using, and lightly press down to get them to adhere.
  5. Allow to chill for an hour or so and then slice into squares.
  6. Store leftovers at room temperature in an airtight container.


If using unsalted butter, add a small pinch of salt to the melted butter and peanut butter.

You can use natural peanut butter, just make sure it's the "no stir" variety or that it is well-stirred into the oils.

  • Prep Time: 5 mins
  • Cook Time: 5 mins
  • Category: Dessert
  • Method: Stovetop
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