Rice Krispie Treats Recipe with Cinnamon Toast Crunch: Crunchy Marshmallow Delight

These marshmallow treats take the classic to a whole new level with an unexpected crunch. The combination of buttery, gooey marshmallow and crispy cereal creates a texture that’s impossible to resist.

By adding Cinnamon Toast Crunch to the traditional Rice Krispies, the recipe introduces a warm, spiced sweetness that balances the perfectly chewy marshmallow base. It’s a simple twist with big flavor impact.

The process stays foolproof—just melt, mix, and press into a pan. No baking required, and the result is a treat that’s ready in 15 minutes with minimal cleanup.

Serve as a snack, dessert, or party favor. This creation proves that small changes can transform a familiar favorite.

Ingredients for Rice Krispie Treats Recipe with Cinnamon Toast Crunch

Buttery marshmallows and two cereals create this irresistible texture combination with minimal effort.

The marshmallows are non-negotiable—Jet-Puffed mini marshmallows melt fastest and smoothest. For the cereals, stick with name brands: Kellogg’s Rice Krispies and General Mills Cinnamon Toast Crunch deliver the right crunch-to-chew ratio. Unsalted butter lets the cinnamon-sugar flavor shine (the good stuff, not margarine). If you’re buying in bulk, Costco has great prices on both cereals and marshmallows.

No mini marshmallows? Regular marshmallows at half the volume (but cut them small first). Want more cinnamon kick? Add an extra quarter teaspoon of ground cinnamon to the melted butter. Light corn syrup can be swapped for honey or agave (but it’ll be stickier). The vanilla extract is subtle but worth it—pure vanilla, not imitation.

These keep 3-4 days at room temperature in an airtight container (they’ll soften but still taste great). For longer storage, freeze for up to 2 months—let them thaw before serving. Press them into a greased pan for easy cutting.

Step-by-Step Instructions for Rice Krispie Treats with Cinnamon Toast Crunch

This method ensures maximum crispiness with a perfectly balanced cinnamon-sweet marshmallow base.

Step 1: Prepare the Cereal Mixture

In a large bowl, combine the 6 cups Rice Krispies Cereal and 2 cups Cinnamon Toast Crunch Cereal. Gently crush the Cinnamon Toast Crunch with your hands or a rolling pin to break it into smaller, bite-sized pieces while preserving some texture.

This step ensures even distribution of the cinnamon flavor throughout the treats. The slight crushing also helps the cereal adhere better to the marshmallow mixture later. Set this bowl aside while you prepare the marshmallow base.

Step 2: Melt the Marshmallow Base

In a large saucepan, melt the 0.5 cup Unsalted Butter over low heat. Once melted, add the 10 cups Mini Marshmallows and 0.25 cup Light Corn Syrup, stirring constantly with a silicone spatula to prevent sticking.

Continue stirring until the mixture is completely smooth and the marshmallows have fully dissolved, about 8-10 minutes. Remove from heat and immediately stir in the 1 tsp Vanilla Extract, 0.5 tsp Ground Cinnamon, and 0.25 tsp Sea Salt until well combined.

Step 3: Combine and Shape the Treats

Pour the melted marshmallow mixture over the cereal mixture in the large bowl. Working quickly, use a spatula to fold everything together until all the cereal is evenly coated with the marshmallow mixture. The mixture will be sticky, so I recommend spraying your spatula and hands lightly with nonstick spray to make handling easier.

Transfer the mixture to a 9×13-inch baking dish lined with parchment paper. Use the spatula or your hands to press the mixture evenly into the pan, ensuring it’s compacted but not overly compressed, which could make the treats too dense.

Step 4: Cool and Cut into Squares

Allow the treats to cool at room temperature for 1-2 hours until fully set. You can speed this up by placing the pan in the refrigerator for 30-45 minutes, but avoid cutting them while still warm, as this can cause the treats to lose their shape.

Once completely cooled, lift the treats out of the pan using the parchment paper and place them on a cutting board. Use a sharp knife to cut into 2-inch squares. For clean cuts, wipe the knife between slices to prevent sticking.

Troubleshooting rice krispie treats recipe with cinnamon toast crunch

Too Sticky to Handle

If the mixture feels impossible to work with, lightly coat your spatula and hands with nonstick spray or dampen them with water. This prevents sticking without affecting texture. I keep a spray bottle nearby for quick touch-ups. 💡

Treats Won’t Hold Shape

If your squares crumble when cutting, the marshmallow mixture may have cooled too much before pressing. Reheat it gently over low heat for 1-2 minutes, then re-press. Also ensure you pressed firmly enough initially.

Overly Dense Texture

Compacted treats lose their signature airy crunch. Press just enough to hold together, not to flatten completely. Use the back of a spatula to evenly distribute pressure. They should spring back slightly when touched.

Cinnamon Flavor Too Weak

For a stronger cinnamon punch, add an extra ¼ tsp ground cinnamon to the melted butter. Alternatively, use 3 cups Cinnamon Toast Crunch instead of 2. The cereal is the primary flavor source, so don’t skip crushing it slightly.

Marshmallows Burnt

Melting over medium or high heat causes scorching. Always use low heat and stir constantly. If you see browning, immediately remove from heat and transfer to a cool bowl to stop cooking. 🔥

Uneven Cereal Distribution

If you notice clumps of one cereal, mix the cereals together thoroughly before adding marshmallow. I also stir the marshmallow mixture in figure-8 patterns to ensure even coating before pressing into the pan.

Frequently Asked Questions