Chocolate Nutter Butter Rice Krispie Treats are an easy no-bake dessert made with 6 cups of Cocoa Krispies, chopped Nutter Butter cookies, melted marshmallows, creamy peanut butter, and a semisweet chocolate topping. This recipe makes 24 soft, chewy bars in a 9 x 13-inch pan, with about 15 minutes of prep, 5 to 8 minutes of melting, and at least 30 minutes to set.
Every bite combines crisp chocolate cereal, buttery marshmallow chew, salty-sweet peanut butter, and crunchy cookie pieces. The chocolate finish makes these treats party-ready, while the simple stovetop method keeps them quick enough for a last-minute dessert craving.
Jump to RecipeWhy You’ll Love This Recipe
These chocolate Nutter Butter Rice Krispie treats deliver the best parts of a cookie, a crispy cereal bar, and a peanut butter dessert in one square. The Cocoa Krispies provide a deep chocolate crunch, while the marshmallow mixture wraps every piece in a soft, stretchy layer.
Chopped Nutter Butter cookies add a pleasant contrast, so the bars are not simply sweet and soft. Creamy peanut butter brings richness to the base, and the semisweet chocolate topping adds a polished finish without making the dessert overly sugary.
For another peanut butter treat with a chewy bakery-style texture, you may also enjoy these chewy peanut butter cookies.
Ingredients You’ll Need
The ingredient list is short, but each item has an important job. Gather everything before melting the marshmallows because the coating begins to firm as soon as it meets the cereal.
- Cocoa Krispies: Six cups create the crisp chocolate foundation.
- Nutter Butter cookies: Sixteen regular sandwich cookies provide peanut butter flavor and crunchy pockets throughout the bars.
- Unsalted butter: Four tablespoons help melt the marshmallows smoothly and add a buttery taste.
- Mini marshmallows: One 10-ounce package binds the cereal and cookies together.
- Creamy peanut butter: One-half cup makes the marshmallow mixture rich and nutty.
- Semisweet chocolate chips: One cup creates the drizzle or spread on top.
- Shortening or coconut oil: One teaspoon is optional, but it can make the melted chocolate thinner and easier to spread.
If you prefer a lighter cereal base, regular Rice Krispies can replace the Cocoa Krispies while the chocolate topping remains. For another creative way to use peanut butter, take a look at this easy peanut butter bread.
How to Make It Step-by-Step
Step 1: Lightly grease a 9 x 13-inch pan and line it with parchment paper if desired. The grease prevents sticking, while the parchment overhang gives you a convenient way to lift the chilled or set slab from the pan.
Step 2: Add the Cocoa Krispies and coarsely chopped Nutter Butter cookies to a large bowl. Set aside a few cookie pieces for the garnish so the finished bars show exactly what flavor is inside.
Step 3: Melt the unsalted butter in a large saucepan over low heat. Add the mini marshmallows and stir often until they are almost completely melted, keeping the heat gentle so the mixture stays soft.
Step 4: Stir in the creamy peanut butter until the mixture looks smooth and uniform. Remove the saucepan from the heat as soon as the peanut butter is blended, since prolonged heating can create a firm, dry texture.
Step 5: Pour the hot marshmallow mixture over the cereal and chopped cookies right away. Fold with a spatula, turning from the bottom of the bowl, until the coating reaches nearly every piece without crushing the cereal.
Step 6: Scrape the mixture into the prepared pan and shape it into an even layer. Use a lightly buttered spatula or parchment-covered hands, applying gentle pressure rather than compressing the bars into a dense block.
Step 7: Place the chocolate chips and optional shortening or coconut oil in a microwave-safe bowl and heat in short intervals, stirring between each one. You can also melt them over a double boiler, stopping when the chocolate is smooth and glossy.
Step 8: Drizzle the chocolate over the surface or spread it into a thin layer with an offset spatula. Sprinkle on the reserved cookie pieces immediately, then allow the treats to set at room temperature for at least 30 minutes before slicing.
Pro Tips for Soft, Chewy Bars
The most important technique is temperature control. Keep the butter and marshmallows over low heat, and remove the pan once the mixture is almost melted; residual heat will finish the job as you stir in the peanut butter.
When pressing the mixture into the pan, think of shaping rather than packing. A lightly buttered spatula glides across the surface, and parchment-covered hands make it easy to spread the mixture without sticking.
Cutting is easiest after the chocolate has set and the slab feels firm but not cold and hard. Use a sharp knife, wipe it between cuts if needed, and make six rows by four rows for 24 even bars.
For a different chocolate dessert idea, these gluten-free chocolate pancakes offer another rich way to start or end a sweet occasion.
Chocolate Topping and Garnish Ideas
The semisweet chocolate topping can be drizzled in thin ribbons for a casual bakery look or spread into a smooth layer for a more polished finish. The optional teaspoon of shortening or coconut oil helps loosen the chocolate, especially when you want a delicate drizzle.
Reserved Nutter Butter pieces are the simplest garnish, but timing matters. Add them while the chocolate is still wet so they adhere instead of sliding off when the bars are cut.
You can substitute milk chocolate or peanut-butter chips for the semisweet chocolate chips. Each option changes the balance slightly: milk chocolate is sweeter, while peanut-butter chips intensify the nutty flavor.
Storage, Serving, and Pan Options
Store the finished bars covered at room temperature, where they retain their pleasant chew and crisp edges. They are especially good served the same day, but a well-covered pan can be kept for several days; avoid unnecessary refrigeration because cold temperatures can make the marshmallow layer firm.
If you want thicker treats, use an 8 x 8-inch or 9 x 9-inch pan instead of the 9 x 13-inch pan. The mixture will be deeper, so allow additional setting time before cutting and use extra care when pressing it evenly.
These bars are ideal for bake sales, lunchbox treats, holiday cookie trays, and casual gatherings because they travel well once set. For a festive dessert table, pair them with chewy Christmas chocolate chip cookies for a mix of crispy, chewy, and chocolate-rich sweets.
Common Questions
Can I use regular Rice Krispies? Yes. Replace the 6 cups of Cocoa Krispies with 6 cups of regular Rice Krispies for a lighter peanut-butter version, while keeping the chopped cookies and chocolate topping.
Why did my treats turn hard? The marshmallow mixture was likely overheated or the cereal was pressed too firmly into the pan. Low heat and a gentle touch are the keys to soft, chewy bars.
Can I skip the parchment? Yes, but lightly grease the pan thoroughly. Parchment is helpful because it makes the set treats easier to lift and slice cleanly.
How long do they need to set? Allow at least 30 minutes at room temperature, although the full setting window can range from 30 to 60 minutes depending on the warmth of your kitchen and the thickness of the bars.
For a fruity companion dessert on the same table, consider this chocolate chip cherry dessert.
Chocolate Nutter Butter Rice Krispie Treats
Ingredients
Method
- Lightly grease a 9 x 13-inch baking pan and line it with parchment paper if desired. Leave a little parchment overhang to make lifting the set bars easier.
- Place the Cocoa Krispies and coarsely chopped Nutter Butter cookies in a large mixing bowl. Reserve a few cookie pieces for sprinkling over the chocolate topping.
- Melt the butter in a large saucepan over low heat. Add the mini marshmallows and stir gently until they are almost completely melted.
- Stir the peanut butter into the warm marshmallow mixture until smooth, then remove the saucepan from the heat. Avoid overheating the mixture, since high heat can make the finished treats hard.
- Immediately pour the marshmallow mixture over the cereal and cookies. Fold gently with a spatula until the cereal and cookie pieces are evenly coated.
- Transfer the mixture to the prepared pan and press it into an even layer using a lightly buttered spatula or parchment-covered hands. Press gently rather than packing it firmly, which helps preserve a soft, chewy texture.
- Melt the chocolate chips with the shortening or coconut oil, if using, in short microwave intervals or over a double boiler. Stir until glossy and smooth, then drizzle or spread the chocolate over the treats.
- Sprinkle the reserved Nutter Butter pieces over the chocolate while it is still soft. Let the pan stand at room temperature for at least 30 minutes before cutting into 24 bars.
Notes
Final Thoughts
Chocolate Nutter Butter Rice Krispie Treats are the kind of dessert that disappears quickly: crisp, chewy, chocolatey, and loaded with peanut butter flavor. With one saucepan, one mixing bowl, and a short setting time, they offer impressive results without turning on the oven.
Keep the marshmallow mixture warm but not overheated, fold rather than crush, and press the bars gently into the pan. Once the chocolate has set, slice, serve, and enjoy a treat that tastes like a chocolate-peanut butter cookie transformed into a wonderfully chewy cereal bar.