Description
These M&M’s Halloween Cookie Bars are festive, chewy, and loaded with colorful candy-coated chocolates. Perfect for kids and adults alike, they make easy party desserts for Halloween celebrations, school events, or cozy family gatherings. Fun to bake, easy to customize, and guaranteed to vanish fast!
Ingredients
Scale
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup packed brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 2 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup semi-sweet chocolate chips
- 1 1/2 cups Halloween M&M’s (plus extra for topping)
- Optional Add-Ins: Candy eyeballs, Halloween sprinkles, Crushed Oreos, Peanut butter chips
Instructions
- Preheat oven to 350°F (175°C). Line a 9×13-inch baking dish with parchment paper or spray with non-stick spray.
- In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy, about 2-3 minutes.
- Beat in the eggs one at a time, followed by the vanilla extract. Mix until fully combined.
- In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add this to the wet ingredients, mixing just until combined.
- Stir in the chocolate chips and most of the Halloween M&M’s. Reserve a handful to press on top before baking.
- Spread the dough evenly into the prepared baking dish. Press additional M&M’s, sprinkles, or candy eyeballs into the top for decoration.
- Bake for 25–30 minutes, or until the edges are golden brown and the center is just set.
- Let cool completely in the pan before slicing.
- Slice into squares or rectangles.
Notes
- Avoid overmixing the dough—mix until just combined for soft bars.
- Don’t overbake—bars continue to set as they cool.
- Line the pan for easy removal and clean slicing.
- Cool completely before cutting to prevent crumbling.
- Customize with sprinkles, candy eyes, or peanut butter chips for variety.
- Prep Time: 15 minutes
- Cook Time: 25–30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar