Peanut butter oreo rice krispies treats combine the classic pairing of chocolate and peanut butter into an easy, no-bake dessert. Have a batch ready in less than 30 minutes!
Heather's recipe summary
Flavor/texture: Classic rice krispies treats with added creamy peanut butter and crumbled Oreo cookies.
Pan size: 9x13
Yield: 24 squares
Similar to: Strawberry Rice Krispies Treats and Birthday Cake Rice Krispies Treats
Ingredients and substitutions
- Cereal - Rice krispies cereal can be name brand or a generic version. Rice krispies could be substituted with chex cereal for a similar result.
- Marshmallows - I prefer using mini marshmallows in rice krispies treats because they melt easily, but large marshmallows will also work.
- Butter - Unsalted or salted butter works in this recipe. If using salted butter, cut the listed salt in half.
How to make rice krispies treats
- Melt butter, peanut butter, salt, and marshmallows in a large pot on the stovetop.
- Mix in cereal and cookie pieces.
- Mix until evenly coated.
- Press into a parchment-lined 9x13 pan and cool before slicing.
Tips and tricks
Pan size - You'll need a 9x13 rectangular baking pan for this recipe. They could also be prepared in a 9x9 square pan to make extra thick rice krispies treats.
Work quickly - The marshmallow mixture cools off and thickens quickly, so it's important to work fast. Mix your ingredients and press them into the pan quickly before the mixture cools and becomes difficult to stir.
Pressing into the pan with less mess - Your cereal mixture will be sticky once mixed. Spray a large spatula or your hands with cooking spray before pressing your bars down. This significantly reduces stickiness while pressing the mixture into the pan.
Frequently asked questions
I don't recommend making rice krispies treats more than one day ahead of time for best results. If you plan to make your bars ahead, leave the slab whole instead of slicing into bars and storing individually. Storing as a whole slab helps retain moisture in your bars.
Yes, a bag of mini marshmallows could be substituted with a jar of marshmallow fluff if desired.
This happens when the ingredients are cooked at too high a heat or cooked for too long on the stovetop. All you're doing is melting the ingredients, not cooking them. There's no need to simmer or cook the ingredients over high heat.
Yes, peanut butter could be substituted with other nut or seed butters like almond butter or sun butter.
Recommended
📖 Recipe
Peanut Butter Oreo Rice Krispies Treats
Ingredients
- ¼ cup (57 g) unsalted butter
- ½ cup (135 g) creamy peanut butter
- ¼ teaspoon salt
- 10 ounces (284 g) mini marshmallows
- 5 cups (140 g) rice krispies cereal
- 12 Oreo cookies, chopped
Instructions
- Line 9x13 pan with parchment paper and set aside.
- In a large saucepan over medium heat, add butter, peanut butter, and salt. Stir until melted.
- Add marshmallows and stir until mostly melted. Remove from heat.
- Add Rice Krispies cereal and chopped Oreos and stir until evenly coated.
- Using a spatula or clean hands, press cereal mixture firmly into 9x13 pan. Allow to cool completely before cutting into 24 two-inch squares.
Equipment Recommendations
Notes
- Storage: Rice krispies treats will keep for about two days in a tightly sealed container at room temperature. Leftovers can be frozen for up to three months.
- Make ahead: If making ahead, store rice krispies treats slab whole and slice the day of serving. Slicing and storing separately dries out the squares faster than leaving the slab whole.
- Tips: Cereal mixture will be sticky once prepared. Using either your hands or a large spatula, spray with cooking spray or dampen with water before pressing your bars down. Both methods help reduce stickiness.
I had so much fun creating this recipe! I hope you give it a try and love it as much as I do. If you have a question, check out the post above, which is packed with information about the recipe. Tried the recipe? I'd love to hear your thoughts — leave a comment and a star rating to share your feedback!