Halloween Rice Krispie Treats with Oreos

Halloween Rice Krispie treats stacked on a plate beside milk and linen.

5 from 1 vote

Halloween Rice Krispie Treats with Oreos

Halloween Rice Krispie Treats with Oreos are no-bake, weeknight-fast, and kid-approved. They're perfect for parties, bake sales, or last-minute classroom treats. This Rice Krispie treats recipe mixes marshmallows, butter, crushed Oreos, candy corn, and festive sprinkles for a chewy, gooey bar you can press into a pan and slice in under an hour.

Prep Time10

Cook Time5

Chill20

Total Time35

Course: Snack

Cuisine: American

Servings:

Calories: 277kcal

Author: Jami Powell

Equipment

Large heavy pot
Silicone spatula
9×13-inch pan
Parchment paper

Ingredients

6 cups Rice Krispies cereal
½ cup unsalted butter (one stick)
18 ounces mini marshmallows
½ teaspoon vanilla extract
pinch salt
14 Oreo cookies with orange filling roughly chopped (reserve a few for topping)
¾ cup candy corn
2 tablespoons festive sprinkles (reserve a few for topping)

Instructions

In a large pot over low heat, melt the butter completely. Add all the marshmallows and stir constantly until smooth and glossy. Remove from heat and stir in vanilla and salt.
Add Rice Krispies and stir until evenly coated. The mixture should look shiny and thick.
Add crushed Oreos, candy corn, and half the sprinkles. Stir just until combined for visible Oreo chunks.
Transfer to a greased 9x13-inch pan and gently press into an even layer. Scatter the reserved Oreos and sprinkles on top, then press lightly to adhere.
Cool at room temperature for about one hour (or chill for 20 minutes for clean edges). Slice into thick squares.

Video

Notes

Storage Store Halloween Rice Krsipie treats in an airtight container at room temperature for 3–4 days.

Freeze For longer storage, wrap tightly and freeze up to 1 month. Thaw at room temperature.

Reheat: To refresh a slightly firm square, microwave 5–8 seconds to soften the marshmallow crumb without melting the toppings.

Substitutions

Cereal: Use Cocoa Crisp Rice for a chocolate base.
Oreos: Try chocolate sandwich thins for a lighter crunch, or swap with chopped chocolate wafer cookies.

Adjustments Cooking time may need to be adjusted based on the geography of the area (high vs. low elevation), cookware (stoneware vs traditional bakeware), and outdoor temperature if grilling.

Nutrition information is only an estimate

Nutrition