0 0
Peanut Butter Krisp Marshmallow Bars

Share it on your social network:

Or you can just copy and share this url


2 cups milk chocolate chips, divided
1 (10-ounce) package large marshmallows
1/3 cup butter
2/3 cup peanut butter, divided
5 cups cocoa flavored crisp rice cereal
1 1/4 cups mini marshmallows
2 cups semisweet chocolate chips

Peanut Butter Krisp Marshmallow Bars

This wonderful recipe, which is a chocolate riff on Rice Krispie Bars, is perfect for bake sales.

  • Serves 24
  • Easy

About This Recipe

This delightful recipe for Peanut Butter Krisp Marshmallow Bars is a riff on Rice Krispie Bars, with the addition of chocolate, cocoa Rice Krispies cereal, and peanut butter. And, of course, frosting! This no bake bar cookie, like Special Kay Bars, is spectacular.

I love this recipe because it is so flavorful. While I also love Rice Krispie Bars, they don’t have a lot of flavor. This bar recipe is also a lot chewier than the classic no bake bar. It’s the perfect after school treat, and it’s also delicious to tuck into lunchboxes.

The cocoa flavored crisp rice cereal is essential to this recipe. Ordinary Rice Krispies just don’t work. And you have to use two kinds of marshmallows. The big ones are melted with chocolate and butter to form the base of the bar along with peanut butter, while the mini marshmallows are folded in along with the cereal to provide visual and textural contrast.

How to make the best Peanut Butter Krisp Marshmallow Bars:

  • Know your microwave oven! The marshmallows need to be microwaved until they are soft enough to melt and combine, but not so much that they become hard.
  • Work quickly when you add the peanut butter and cereal to the melted marshmallow mixture. This mixture does firm up more quickly than your average Rice Krispies mixture.
  • Press the cereal mixture into the pan firmly, but don’t press down too hard or the bars will be too hard.

Why this recipe works:

  • The addition of peanut butter really brings out the chocolate flavor in these bars. Most people add coffee to chocolate – yuck! I think that peanut butter adds more roundness to chocolate and enhances the flavor.
  • The combination of crisp cereal with soft mini marshmallows and rich chocolate chips is irresistible.

Subscribe to my emails!



Grease a 13-inch by 9-inch pan with butter and set aside.


In a large microwave-safe bowl, combine 1 cup milk chocolate chips with the large marshmallows and butter. Microwave on 50% power for 1 minute; remove from microwave and stir.


Continue microwaving for 1-minute intervals, stirring after each interval, until the mixture is melted and smooth. Stir in 1/3 cup peanut butter until blended, and then stir in the cereal.


Then stir in the mini marshmallows and remaining 1 cup milk chocolate chips. Immediately spoon into the prepared pan and press down lightly.


In a medium microwave-safe bowl, combine the semisweet chocolate chips and remaining 1/3 cup peanut butter. Microwave on high power for 1 minute; remove and stir. Continue microwaving for 30 second intervals, stirring after each, until the mixture is melted and smooth.


Immediately pour the chocolate mixture over the bars and spread to cover. Let stand until set, then cover and store at room temperature. Cut into bars to serve.


Linda is a bestselling cookbook author and home economist who has written 54 books (53 cookbooks and Medical Ethics for Dummies) since 2005. She has worked for Pillsbury since 1988, on the Bake-Off and other projects. Linda has been a web presence since 2002, developing recipes and teaching people how to cook.

Best Banana Bread
Best Banana Bread
Salmon Bacon Sandwich
Salmon Bacon Sandwich