Gluten-Free Reese's Cocoa Krispies Treats

Prep: 10 minCook: 5 min12 servingsmediumAmerican
Reese's Cocoa Krispies Treats with Peanut Butter

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

12 servings
  • ¾ cup Reese's Peanut Butter Cups, chopped into small chunks
    almond butter1:1flavorpeanuts-freeadds dairy

    nuttier taste

    Full guide →
  • ½ cup butter
    almond butter1:1flavorpeanuts-freeadds dairy

    nuttier taste

    Full guide →
  • 2 10-ounce bags mini marshmallows, divided
  • ½ cup peanut butter
    almond butter1:1flavorpeanuts-freeadds dairy

    nuttier taste

    Full guide →
  • 10 cups Cocoa Krispies cereal
    Rice Krispies1:1texture

    plain version, less chocolate flavor

Instructions

  1. 1

    Chop Reese's Peanut Butter Cups into small chunks and set aside.

  2. 2

    Spray a 9x13-inch pan with cooking spray, including the base of a wooden spoon.

  3. 3

    Melt butter in a large Dutch oven over medium heat.

  4. 4

    Add marshmallows (reserving 1 1/2 cups) to the melted butter and stir until fully melted.

  5. 5

    Stir in peanut butter until combined.

  6. 6

    Gradually pour in Cocoa Krispies, stirring well to coat evenly.

  7. 7

    Stir in the reserved 1 1/2 cups of marshmallows.

  8. 8

    Transfer mixture to the prepared pan and press gently without compacting.

  9. 9

    Sprinkle chopped Reese's on top and press lightly to adhere.

  10. 10

    Cool and set for at least 20 minutes before cutting.

Tips

Tip 1

Reserve marshmallows before melting to maintain texture contrast; the reserved portion adds chewiness that prevents the bars from becoming uniformly dense.

Tip 2

Don't press firmly when transferring to the pan. Light pressure keeps the treats light and crispy rather than dense and stale.

Tip 3

Spray your wooden spoon with cooking spray to prevent marshmallow mixture from sticking, making stirring and pressing easier.

Good to Know

Storage

Airtight container at room temperature for up to 5 days. Separate layers with parchment to prevent sticking.

Make Ahead

Prepare up to 3 days in advance. Cut and store in an airtight container. Do not freeze; marshmallow texture becomes rubbery.

Serve With

Cut into 24-36 squares. Serve at room temperature as a snack, dessert, or lunchbox addition.

Common Mistakes

Watch

Press too firmly to avoid dense, hard bars that lack the light crispy texture

Watch

Use cold marshmallows to avoid incomplete melting and lumpy mixture

Watch

Add cereal all at once to avoid dry streaks; gradual addition ensures even coating

Watch

Skip the reserved marshmallows to maintain texture layers throughout the bars

Substitutions

Dairy-Free Swaps

butter
coconut oil1:1texturedairy-free

slightly different mouthfeel

Full guide →
Reese's Peanut Butter Cups
crushed Oreos3/4 cuptexturedairy-free

chocolate-vanilla swap

Nut-Free Alternatives

peanut butter
almond butter1:1flavorpeanuts-freeadds dairy

nuttier taste

Full guide →

General Alternatives

Cocoa Krispies
Rice Krispies1:1texture

plain version, less chocolate flavor

Find more substitutions →

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.