Muddy Buddy Cookie Recipe: Crunchy Chocolate-Peanut Treats

These Muddy Buddy Cookies start with a soft peanut butter cookie made from a yellow cake mix, then receive a smooth chocolate ganache and are finished with crunchy Muddy Buddy cereal on top. The combination of chewy cookie, creamy chocolate, and crisp cereal makes these an irresistible treat.

At our house these Muddy Buddy cookies are a favorite — crunchy on top, soft underneath, and packed with peanut butter and chocolate flavor. If you haven’t encountered Muddy Buddies before, the snack began as a homemade mix of Chex cereal with chocolate, peanut butter, butter, and powdered sugar. It’s so popular now that you can buy a Muddy Buddy cereal version at many stores, which makes topping these cookies quick and easy.

The cookie base is chewy and peanut-forward, the ganache adds rich chocolate, and the Muddy Buddy cereal provides texture and extra sweetness. These are perfect for bake sales, parties, or a special snack at home.

What goes into this Recipe

• Yellow cake mix: Using cake mix simplifies the process — no measuring flour or separately mixing dry and wet ingredients. You can swap in another cake mix flavor if you prefer.
• Peanut butter: Smooth, creamy peanut butter gives the cookies their signature flavor and tender texture.
• Butter: Melted butter adds richness; unsalted is recommended since peanut butter contributes salt.
• Milk chocolate chips: These are melted with heavy cream to make the ganache. Use dark or semi-sweet chocolate if you want a less sweet ganache.
• Heavy cream: Keeps the ganache silky and glossy.
• Muddy Buddy cereal: Store-bought Muddy Buddy cereal (or homemade “puppy chow”) is used to top the cookies for crunch and flavor.

How to make Muddy Buddy Cookies

1. Preheat the oven to 350°F. In a large bowl combine the cake mix, peanut butter, cooled melted butter, and eggs. Mix until fully combined. Use a medium cookie scoop (about 1.5 tablespoons) to portion the dough into a bowl of granulated sugar; roll each ball in sugar and place on a silicone mat or parchment-lined baking sheet.
2. Dip the bottom of a round drinking glass in the granulated sugar and gently press the center of each dough ball to flatten and create a shallow indentation.

3. Bake the cookies 8–10 minutes, until set around the edges. Let them cool on the baking sheet for about 10 minutes to finish setting, then transfer to a cooling rack. While still warm, use the back of a spoon or a tart shaper to reinforce the indentation if needed.
4. When the cookies are completely cool, make the ganache: place the milk chocolate chips and heavy cream in a microwave-safe bowl and heat for 30 seconds. Whisk until smooth and shiny; heat in additional 10-second bursts if necessary. Spoon the ganache into each indentation.
5. Top each cookie with 2–4 pieces of Muddy Buddy cereal, then dust lightly with powdered sugar. Allow the ganache to set for a few minutes before serving.

Expert Tips

• Choose smooth peanut butter. The cereal provides texture on top, so a creamy peanut butter gives the best cookie texture. Avoid natural-style peanut butter, which can affect consistency.
• Use a consistent scoop. A medium cookie scoop or a tablespoon yields uniform cookies that bake evenly and hold their shape.
• Cool briefly on the baking sheet. Let the cookies sit on the sheet for about 10 minutes before moving them to a rack so they finish setting without breaking apart.

Storage and Freezing

Store: Once fully cooled, keep the cookies in an airtight container at room temperature for up to a week.

Freeze: Freeze cookies in a single layer on a baking sheet until solid, then transfer to a freezer-safe container with parchment between layers to prevent sticking. They keep for up to three months. Thaw at room temperature before serving.

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5 from 1 vote

Easy Muddy Buddy Cookies Recipe

By: June Albertson-Dick

Soft peanut butter cookies filled with chocolate ganache, topped with Muddy Buddy cereal and a dusting of powdered sugar.

Prep: 15 mins

Cook: 30 mins

Total: 42 mins

Servings: 22 cookies

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Ingredients 

Peanut Butter Cookies

• 1 box yellow cake mix, {13.25 ounces}
• 1 cup creamy peanut butter
• ½ cup butter, {melted}
• 2 large eggs
• 1/4 cup granulated sugar

Chocolate Ganache

• 1 ¼ cups milk chocolate chips
• ⅓ cup heavy cream

Topping

• 1 cup Muddy Buddy cereal, {store-bought}

Instructions 

Peanut Butter Cookies

• Preheat the oven to 350°.
• Combine the cake mix, peanut butter, cooled melted butter, and eggs in a large bowl and mix until smooth.
• Use a medium cookie scoop to form dough mounds, roll them in granulated sugar, and place on a silicone mat or parchment-lined sheet.
• Dip the bottom of a glass in sugar and press the center of each dough mound to create an indentation.
• Bake 8–10 minutes until edges are set. Let cool on the baking sheet 10 minutes before transferring to a rack. Repeat with remaining dough.

Chocolate Ganache

• When cookies are cool, heat the chocolate chips and heavy cream in a microwave-safe bowl for 30 seconds. Whisk until smooth, reheating in short bursts if necessary.

Assembly

• Spoon the ganache into each cookie indentation and top with a tablespoon of Muddy Buddy cereal. Let set, then dust with powdered sugar if desired.

Notes

Store cooled cookies in an airtight container at room temperature for up to a week. To freeze, arrange in a single layer on a baking sheet until firm, then transfer to a freezer-safe bag with parchment between layers; freeze up to three months.

Nutrition

Serving: 1cookie, Calories: 282kcal

Nutrition information is an approximation.

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