Gluten-Free Reese's Cocoa Krispies Treats

No-bake cereal bars loaded with peanut butter cups, chocolate cereal, and marshmallows. Sweet, salty, and intensely indulgent, these treats deliver Reese's flavor in every bite. Perfect for potlucks, lunchboxes, or dessert platters. This version layers chopped peanut butter cups throughout and on top for maximum texture and flavor contrast, avoiding the one-note sweetness of plain rice krispie treats.
Ingredients
- ¾ cup Reese's Peanut Butter Cups, chopped into small chunks
- ½ cup butter
- 2 10-ounce bags mini marshmallows, divided
- ½ cup peanut butter
- 10 cups Cocoa Krispies cerealRice Krispies1:1texture
plain version, less chocolate flavor
Instructions
- 1
Chop Reese's Peanut Butter Cups into small chunks and set aside.
- 2
Spray a 9x13-inch pan with cooking spray, including the base of a wooden spoon.
- 3
Melt butter in a large Dutch oven over medium heat.
- 4
Add marshmallows (reserving 1 1/2 cups) to the melted butter and stir until fully melted.
- 5
Stir in peanut butter until combined.
- 6
Gradually pour in Cocoa Krispies, stirring well to coat evenly.
- 7
Stir in the reserved 1 1/2 cups of marshmallows.
- 8
Transfer mixture to the prepared pan and press gently without compacting.
- 9
Sprinkle chopped Reese's on top and press lightly to adhere.
- 10
Cool and set for at least 20 minutes before cutting.
Tips
Reserve marshmallows before melting to maintain texture contrast; the reserved portion adds chewiness that prevents the bars from becoming uniformly dense.
Don't press firmly when transferring to the pan. Light pressure keeps the treats light and crispy rather than dense and stale.
Spray your wooden spoon with cooking spray to prevent marshmallow mixture from sticking, making stirring and pressing easier.
Good to Know
Airtight container at room temperature for up to 5 days. Separate layers with parchment to prevent sticking.
Prepare up to 3 days in advance. Cut and store in an airtight container. Do not freeze; marshmallow texture becomes rubbery.
Cut into 24-36 squares. Serve at room temperature as a snack, dessert, or lunchbox addition.
Common Mistakes
Press too firmly to avoid dense, hard bars that lack the light crispy texture
Use cold marshmallows to avoid incomplete melting and lumpy mixture
Add cereal all at once to avoid dry streaks; gradual addition ensures even coating
Skip the reserved marshmallows to maintain texture layers throughout the bars
Substitutions
Dairy-Free Swaps
chocolate-vanilla swap
Nut-Free Alternatives
General Alternatives
plain version, less chocolate flavor
FAQ
Can I use regular Rice Krispies instead of Cocoa Krispies?
Yes, use the same quantity. The bars will be less chocolate-forward and more neutral-sweet. Add cocoa powder or chocolate chips to the marshmallow mixture if you want to preserve chocolate flavor.
What if my marshmallows won't fully melt?
Ensure your heat is at medium, not lower. Stir constantly and give them 2-3 minutes. If still lumpy, remove from heat and stir vigorously for 30 seconds. Lumps often dissolve with residual heat.
How long do these keep, and can I freeze them?
Store at room temperature in an airtight container for 5 days. Freezing is not recommended; marshmallows become tough and rubbery when thawed.