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Double Chocolate Crumble Bars Recipe

These easy to make Double Chocolate Crumble Bars have a cookie crust, gooey marshmallow center, and are topped with chocolate, butterscotch and peanut butter wrapped around Rice Krispies.

Double Chocolate Crumble Bars

Calling all chocoholics! You have to try this delicious chocolate filled dessert! This recipe came from my Mom’s collection and has been with her for more than 40 years. This is a good one and I’m excited to share it with you!


These bars are perfect for holidays, potlucks, or family gatherings. They will be a hit!


What You Need:

  • Unsalted Butter

  • Sugar

  • Eggs

  • Vanilla Extract

  • Chopped Pecans (optional)

  • All Purpose Flour

  • Unsweetened Cocoa Powder

  • Baking Powder

  • Salt

  • Miniature Marshmallows

  • Peanut Butter

  • Rice Krispies

  • Semi-Sweet Chocolate Chips

  • Butterscotch Chips

If you want more yummy chocolate recipes, take a look at:



Tips for Making Double Chocolate Crumble Bars

  • Adding the eggs one at a time and mixing after each egg is added will make the bars softer and is less likely to over bake and dry out in the oven.

  • ​If you don't have mini-marshmallows, cut up large marshmallows until you have the desired amount.

  • ​Allow the bars with marshmallow top time to cool so the chocolate-butterscotch-peanut butter mixture will spread over the set marshmallows.

  • If you live in a warm climate, it's best to keep the bars refrigerated!


If you are a fan of chocolate and Rice Krispies, try Krispy Chocolate Caramel Bars! They are a different spin on chocolate deliciousness!


How To Make Double Chocolate Crumble Bars

An easy to follow recipe that you will have ready in no time!


Step 1: Preheat oven to 350°F and prepare a 9x13 inch pan with non-stick cooking spray or line with parchment paper. In a large bowl, cream the butter and sugar and mix until well combined. Add the eggs, one at a time, and the vanilla extract.

Creamed butter, eggs, sugar and vanilla extract

Step 2: In a small mixing bowl combine flour, chopped pecans (optional), cocoa powder, baking powder and salt. Mix well. Slowly add the dry ingredients to the creamed mixture, stirring until well combined. Press dough in the bottom of the prepared 9x13 inch pan and bake for 15-20 min or until the bars test done.

Adding dry ingredients to creamed mixture

Step 3: Remove the bars from the oven and sprinkle marshmallows on top of the baked bars. Return to the oven and bake for another 3-5 minutes. Remove from the oven and cool.

Mini-marshmallow melted on top of bars

Step 4: In a microwave safe bowl, melt chocolate chips, heating in 30 second intervals and stirring after each cooking time. Melt the Butterscotch chips in a separate microwave safe bowl in 30 second intervals stirring after each cooking time. Once the semi-sweet and butterscotch chips are melted, pour together into one medium bowl and add the peanut butter. Stir until the peanut butter is creamy and all three ingredients are fully combined. Stir in the Rice Krispies and spread on top of the cooled bars. Chill and cut into bars.

Rice Krispies-Chocolate Chips-Butterscotch Chips - Peanut Butter is the topping on the bars!

How to Store Double Chocolate Crumble Bars

Store the bars covered in the 9x13 inch pan or in an airtight container at room temperature in a cool, dry place for up to three days. You may also keep it in the refrigerator for up to 5 days.


These yummy bars are just lazy cookies that are fully of gooey chocolate and is a dessert for chocolate lovers. Oh, and it's really Forkin’ Good! Happy baking!

If you make this recipe, I would love to hear from you! Leave a comment at the bottom of this page! Make sure you follow me on Instagram and Facebook, too! THANK YOU!



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