Soft and chewy classic monster cookie bars with a fun Halloween themed twist. These easy cookies have all of the classic monster cookie flavors, with peanut butter, oatmeal, and chocolate chips. But also with Halloween themed sprinkles, Halloween themed M&Ms. Everyone will love these easy chewy cookie bars this Halloween.
The cookie dough is made like a classic monster cookie dough, except with the addition of Halloween themed sprinkles and Halloween M&Ms. Press the cookie dough into a greased square baking dish and bake until the center comes out clean with a toothpick. Let cool completely before cutting into bars and serving.
Halloween Monster Cookie Bars
Ingredients
- 1/2 cup butter, softened
- 1/2 cup peanut butter
- 1/2 cup granulated sugar
- 1/2 cup brown sugar
- 1 1/2 cups all-purpose flour
- 1 cup quick oats
- 1/2 teaspoon salt
- 1/2 teaspoon baking soda
- 1 large egg
- 1 teaspoon vanilla extract
- 1/2 cup Halloween sprinkles
- 1 cup chocolate chips
- 1 cup Halloween M&Ms
Instructions
- Preheat the oven to 350 F. In a medium bowl, whisk together flour, oats, salt, and baking soda. In a large bowl, combine butter with peanut butter and both sugars until fluffy. Add in the egg and vanilla extract, and mix until smooth.
- Add in the flour mixture, mix until it is fully combined. Fold in the sprinkles, chocolate chips, and M&Ms. Evenly press the cookie dough into a greased 8-inch square baking dish. Bake for 20-25 minutes.
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