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If you’ve ever wished your morning cereal could double as a dessert, wish granted. These Oreo Puffs Cereal Bars are gooey, chocolatey, and packed with crunchy marshmallow goodness. Think classic Rice Krispies, but upgraded with Oreo cookie flavor and puffed perfection.

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Why You’ll Love These Homemade Oreo Puffs Cereal Bars

Only 3 ingredients and about 15 minutes of effort.
No bake recipe that’s easy enough for kids to help with.
Soft, gooey texture with chocolate crunch in every bite. Your taste buds will thank you.
Great for after-school snacks, bake sales, or a quick dessert fix.

What are Oreo Puffs?

Oreo Puffs cereal is a chocolate breakfast cereal from Post Consumer Brands. It combines crunchy cocoa puffs with bits of Oreo cookies and little marshmallows. The flavor is meant to taste like Oreos, which makes it an easy choice for cereal-based desserts like these Oreo Puffs bars. A delicious way to start the morning.

Ingredients

Gooey Oreo Puffs Cereal Bars Recipe

4 tablespoons salted butter (add 1/4 teaspoon salt if using unsalted)
10.5 oz mini marshmallows (fresh for best melting)
5 cups Oreo Puffs cereal

Instructions How to Make Oreo Puffs Cereal Bars

Melt butter in a large saucepan over low heat. Add marshmallows and stir until smooth. Remove from heat.
Stir in Oreo O’s cereal until the cereal mixture is evenly coated with the marshmallow mixture.
Press mixture into a greased or parchment-lined 8-inch pan using a buttered spatula or wax paper in an even layer. Let cool.
Cut into 8 bars and serve. Best the same day.

Microwave Directions: In a large microwave-safe bowl, heat butter and marshmallows on HIGH for 3 minutes, stirring after 2 minutes. Stir until smooth. Mix in Oreo Puffs cereal, press into the pan, and cool before cutting.

How to Store Homemade Oreo Puffs Cereal Bars

Keep in an airtight container at room temperature for up to 2 days.
For longer storage, freeze in layers with wax paper for up to 6 weeks. Thaw treats at room temperature for 15 minutes before serving.

More Variations

Drizzle with melted white chocolate or peanut butter for other favorite flavor options.
Sprinkle crushed Oreos on top before the bars set.
Add colorful sprinkles to make this crispy treat dessert look festive for parties.
Swap out the Oreo puffs with rice krispies for Oreo krispie treats!

FAQs

Can I use large marshmallows?

Yes. Cut them into smaller pieces so they melt smoothly.

Why are my bars hard?

Overcooked marshmallows can stiffen the mixture. Melt them gently over low heat for a softer texture. Also, make sure to use fresh marshmallows as well.

Can I double this recipe?

Yes. Use a 9×13 pan and double all ingredients.

Do these chocolate cereal bars need refrigeration?

No. Keep at room temperature in a sealed container.

If you’re looking for an easy chocolate cereal treat recipe, these Oreo Puffs bars are chewy, rich, and full of Oreo flavor. They’re simple to make and fun to share with anyone who loves a cookies-and-cream treat.

Craving more easy dessert recipes? Join me on Pinterest, Instagram and Facebook for more no bake sweets and Oreo-inspired desserts.

More Oreo Love

Gooey Oreo Puffs Cereal Bars

Kim Lange

Oreo Puffs Cereal Bars made with butter, marshmallows, and Oreo Puffs cereal. A gooey, chocolatey no bake treat with cookies-and-cream flavor in every bite.

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Print Recipe Pin Recipe

Prep Time 10

Cook Time 5

Cooling Time 30

Total Time 45

Course Dessert, Snack

Cuisine American

Servings bars

Calories

Ingredients

4 tablespoons salted butter add 1/4 teaspoon salt if using unsalted
10.5 oz mini marshmallows fresh works best
5 cups Oreo Puffs cereal

Instructions

Melt butter in a large saucepan over low heat. Add marshmallows and stir until melted and smooth. Remove from heat.
Stir in Oreo Puffs cereal until evenly coated.
Press mixture evenly into a greased or parchment-lined 8-inch pan. Use a buttered spatula or wax paper to press it down gently. Let cool.
Cut into 8 bars and serve.
Microwave method: Place butter and marshmallows in a large microwave-safe bowl. Heat on HIGH for 3 minutes, stirring after 2 minutes. Stir until smooth. Mix in cereal, press into the pan, and let cool before cutting.

Notes

Fresh marshmallows melt more smoothly and give the best texture.
Melt over low heat to keep the bars chewy instead of hard.
Store in an airtight container at room temperature for 2 days.
To freeze, layer bars with wax paper in a container and freeze for up to 6 weeks. Thaw at room temperature for 15 minutes before serving.