Skip to main content

No bake monster cookie bars

No bake monster cookie bars



1/2 cup butter, softened

1/2 cup sugar

1/4 cup brown sugar

1 cup creamy peanut butter

1/2 cup flour

1 tsp vanilla extract

2 cups old fashioned oats

3/4 cup mini M&M's


1 1/4 cup semi-sweet chocolate chips

3 Tbs. heavy cream

1/4 cup mini M&M's to garnish


Line a 9 inch baking dish with foil or parchment paper.

Combine butter, sugar, and brown sugar together in a large bowl. Mix at medium speed until combined. Add peanut butter and mix until well blended.

Stir in flour (see notes for eating raw flour) and vanilla; mixing until just incorporated. Slowly add oats, 1 cup at a time. Fold in M&M's. Press into prepared pan.

In a microwave safe bowl melt together chocolate and heavy cream, in 30 second increments. Once smooth, pour over cookie dough mixture. Sprinkle with remaining M&M's.

Refrigerate for 1-2 hours, or until chocolate is completely set up before serving.


Raw flour is not safe to eat. You can microwave for 1 minute, or bake at 350 degrees F for 5 minutes. 

This recipe originally appeared on Erin's Dinners, Dishes and Desserts site.