Chocolate Nutter Butter Crispy Treats
I make these Chocolate Nutter Butter Crispy Treats on slow afternoons when I want something nostalgic with a grown-up twist. They are a mash-up of childhood cereal bars and the cookie-and-chocolate combo everyone goes crazy for. The texture is classic — crisp, sticky, and chewy — but the Nutter Butters and chunks of Hershey’s take it into a reliably addictive territory.
This recipe is straightforward and forgiving, which is why I turn to it for last-minute bake-sale contributions or an easy party platter. You don’t need fancy tempering or specialized skills. Follow the steps, press firmly, and let the pan rest. The payoff is a tray full of bars that travel well and disappear even faster than you expect.
I’ll walk you through exactly what goes into these bars, how to make them without stress, swaps if you need them, and the handful of mistakes to avoid so your batch comes out right every time. Practical tips and small adjustments are included so you can make this recipe your own without breaking the basic formula.
What Goes Into Chocolate Nutter Butter Crispy Treats

Ingredients
- 3TbsReal Sweet Cream ButterUnsalted — Adds fat for shine and helps the marshmallows melt smoothly; unsalted keeps sweetness balanced.
- 1 10ozpackage of Marshmallows — The binder that makes the cereal stick together; the amount yields a firm but soft set.
- 6CupsRice Krispy Cereal — The crunch and bulk of the bars; measure lightly for the right cereal-to-marshmallow ratio.
- 18Nutter Butter Cookies – Crushed — Peanut-butter cookie pieces that give flavor and texture contrast; crush to bite-size bits.
- 2LargeMovie Size Hershey Bars – broken into small chunks — Chocolate pockets throughout; leave as chunks so they melt a little but still hold form.
Mastering Chocolate Nutter Butter Crispy Treats: How-To
- Spray a 9×13-inch pan with nonstick spray and set aside.
- Place 3 tablespoons butter and the entire 10-ounce package of marshmallows in a large microwave-safe bowl.
- Microwave on HIGH for 3 minutes, stopping once halfway through to stir. After 3 minutes, stir until the marshmallows and butter are melted and smooth; if small pieces remain, microwave an additional 15–20 seconds and stir again.
- While the marshmallows are heating, combine 6 cups Rice Krispy cereal, 18 crushed Nutter Butter cookies, and the broken chunks from the 2 large movie-size Hershey bars in a large mixing bowl.
- Pour the melted marshmallow mixture over the cereal/cookie/chocolate mixture. Use a spatula lightly greased with a little of the melted butter (or lightly buttered hands) to fold and stir until everything is evenly coated.
- Transfer the mixture to the prepared 9×13 pan. Press it firmly and evenly into the pan, working it into the corners with the greased spatula or lightly buttered hands.
- Let the pan cool at room temperature until the treats are set and firm (about 30–60 minutes).
- Cut into squares and serve. Best eaten the same day as making.
What Sets This Recipe Apart

This is not just a cereal bar with chocolate mixed in. It’s the combination of Nutter Butter cookie fragments and chunky Hershey’s pieces that creates pockets of peanut-butter flavor alongside melting chocolate islands. The cookies give a nuttier, denser bite than just adding peanut butter or chips would, and the broken movie-size Hershey bars deliver larger, slightly molten chocolate bites that remain texturally interesting when the bar cools.
Another defining feature is the simplicity: no stove-top caramelizing, no tempering. You get big texture contrasts and bold flavors with a minimal ingredient list and almost no hands-on cooking time. That makes these perfect for a crowd or for an afternoon project with kids.
Easy Ingredient Swaps

- Swap Rice Krispies for another puffed rice cereal if you prefer a slightly different crunch or a gluten-free certified puffed rice to keep it gluten-free (check Nutter Butter substitute for allergy needs).
- Replace Hershey bars with any sturdy chocolate bar you like — dark chocolate for less sweetness or a peanut-filled bar for extra texture. Keep quantities similar (two large bars worth).
- If you don’t have Nutter Butter cookies, use finely chopped peanut butter cookies or even graham crackers plus a tablespoon of peanut butter for that peanut flavor.
- For salted-butter fans: use salted butter and omit any extra finishing salt; the tiny salt boost can heighten chocolate and peanut flavors.
- Want a softer, more gooey bar? Add a few extra marshmallows (no precise change required, add slowly) — but be aware this changes the set time and texture.
Toolbox for This Recipe
- 9×13-inch pan — the size specified yields the right thickness for each bar.
- Large microwave-safe bowl — for melting butter and marshmallows safely.
- Large mixing bowl — to combine cereal, cookies, and chocolate chunks without spilling.
- Greased spatula or lightly buttered hands — for folding and pressing the mixture into the pan cleanly.
- Sharp knife or bench scraper — to cut the cooled slab into neat squares.
- Nonstick spray — helps with unmolding and cleanup.
Avoid These Mistakes
- Underheating the marshmallows: If marshmallows aren’t fully melted you’ll get dry pockets and incomplete binding. Stir well and heat another 15–20 seconds if small pieces remain.
- Overpressing the pan: Pressing too hard compresses air out and makes the bars dense and heavy. Press firmly and evenly, but don’t flatten into a brick — aim for compact, not compacted.
- Adding chocolate too soon: If your chocolate chunks are very small, they’ll melt into the marshmallow entirely. Fold them in gently so chunks stay intact for texture.
- Cutting too early: The bars need time to set — cutting before 30 minutes risks a gunky mess. If you’re impatient, chill the pan briefly but watch for condensation.
- Using too small a pan: A smaller pan will make very thick, sticky bars; stick to 9×13-inch for the intended texture and serving size.
Variations by Season
Spring/Summer: Fold in a handful of freeze-dried strawberries or sprinkle a few chopped toasted almonds on top for a light, bright finish. Chill briefly before serving to make the bars more refreshing in warm weather.
Fall: Add a pinch of cinnamon to the marshmallow mixture or press thin apple chips into the top before it sets. A drizzle of warmed caramel across the cooled bars pairs beautifully with the peanut cookie pieces.
Winter: Stir in mini marshmallows or chopped peppermint candies for a festive touch. Use dark chocolate chunks for a richer contrast that stands up to winter flavors.
Flavor Logic
Flavor balance here relies on three elements: sweetness from marshmallows, nuttiness from the Nutter Butter pieces, and chocolate richness from the Hershey chunks. The butter acts as a glossing agent and helps the marshmallows melt evenly. Keeping the cookie pieces relatively large gives a satisfying peanut-butter note without overwhelming the cereal base.
Chocolate chunks rather than chips matter because larger chunks soften but don’t fully disappear, creating pockets of molten chocolate that contrast with the crisp cereal. That contrast — sticky and soft vs. crisp and crunchy — is what makes these treats interesting to eat.
Keep-It-Fresh Plan
Room temperature is best for short-term storage. Store the cut bars in an airtight container at room temperature for up to 24 hours — they’re at their peak that day. If you need to keep them longer, layer parchment between the bars and store in the refrigerator for up to 5 days. Note: refrigeration will firm them up and slightly change the texture.
For longer storage, wrap individual squares tightly and freeze up to 1 month. Thaw wrapped at room temperature for 20–30 minutes before serving to avoid condensation making them soggy.
Common Questions
- Can I melt the marshmallows on the stove instead of the microwave? Yes. Use a medium saucepan over low heat with the 3 tablespoons butter and marshmallows, stirring constantly until smooth. Remove from heat and proceed as directed.
- Can I use mini marshmallows instead of a 10-ounce package? A 10-ounce package is the specified amount; if you only have mini marshmallows, measure the equivalent by weight (10 ounces) for best results.
- My chocolate melted into the mix — is that bad? Not necessarily. If chunks melt completely, you’ll still have chocolate flavor, but you’ll lose the chunk texture. Use slightly larger pieces or fold in last for more defined pockets.
- How do I get neat squares? Let the slab cool fully, then use a sharp knife warmed under hot water and wiped dry between cuts. A bench scraper works well too for straight edges.
- Can I make these gluten-free? Substitute a certified gluten-free puffed rice cereal and use a gluten-free peanut cookie or omit the cookie pieces entirely. Note that Nutter Butter cookies are not gluten-free.
The Takeaway
Chocolate Nutter Butter Crispy Treats are an easy, crowd-pleasing riff on a classic snack-bar formula. They rely on a short ingredient list and a straightforward technique, but the cookie pieces and chocolate chunks upgrade the experience. Make them when you want something quick, transportable, and delightfully nostalgic with a grown-up twist. Follow the steps as written, press with care, and enjoy the best-eaten-the-same-day magic.

Chocolate Nutter Butter Crispy Treats
Ingredients
Equipment
Method
- Spray a 9x13-inch pan with nonstick spray and set aside.
- Place 3 tablespoons butter and the entire 10-ounce package of marshmallows in a large microwave-safe bowl.
- Microwave on HIGH for 3 minutes, stopping once halfway through to stir. After 3 minutes, stir until the marshmallows and butter are melted and smooth; if small pieces remain, microwave an additional 15–20 seconds and stir again.
- While the marshmallows are heating, combine 6 cups Rice Krispy cereal, 18 crushed Nutter Butter cookies, and the broken chunks from the 2 large movie-size Hershey bars in a large mixing bowl.
- Pour the melted marshmallow mixture over the cereal/cookie/chocolate mixture. Use a spatula lightly greased with a little of the melted butter (or lightly buttered hands) to fold and stir until everything is evenly coated.
- Transfer the mixture to the prepared 9x13 pan. Press it firmly and evenly into the pan, working it into the corners with the greased spatula or lightly buttered hands.
- Let the pan cool at room temperature until the treats are set and firm (about 30–60 minutes).
- Cut into squares and serve. Best eaten the same day as making.
Notes
Just understand that it is kind of crazy mixing the rice cereal into the marshmallow goo. Keep working on it and it will finally work in!
