These Halloween Cookie Bars are loaded with Cookies & Screeem Halloween M&M’s, mini chocolate chips and white chocolate chips. No rolling and no scooping, these cookie bars are perfect for Halloween parties or class treats.
I’m always looking for variations on for my popular cookie bar recipes. When I spotted these Cookies & Screeem M&M’S at Target I knew they would be perfect for Halloween cookie bars.
The Cookies & Screeem M&M’S pair perfectly with mini chocolate chips and white chocolate chips. My favorite part is the black and white color scheme. It’s perfect for Halloween!
Start by mixing up the cookie dough.
Then transfer cookie dough into a 9×13 glass baking dish, lined with foil. Generously sprinkle the top of the bars with additional M&M’S, chocolate chips and white chocolate chips.
Bake for 30-35 minutes. Edges should be golden brown and center will be set but still soft. Cookie bars will continue baking as they cool, so don’t over bake.
- 2 sticks of butter at room temperature
- 1 cup of granulated sugar
- 1 cup of firmly packed golden brown sugar
- 3 large eggs
- 1 1/2 teaspoons of pure vanilla extract
- 3 cups of all-purpose flour
- 3/4 teaspoon of baking soda
- 3/4 teaspoon of salt
- 1 cup of Cookies and Screeem M&M'S plus more for topping
- 1 cup of mini chocolate chips plus more for topping
- 1 cup white chocolate chips plus more for topping
Preheat oven to 350 degrees. Line a 9x13 baking dish with foil, leave some overhang to make cutting easier. Spray foil generously with nonstick cooking spray.
In the bowl of a stand mixer, beat butter, granulated sugar, and brown sugar together until fluffy. Add in eggs and vanilla extract and continue to beat.
Lower speed of mixer and add flour, baking soda and salt, and mix until combined. Add M&M's, mini chocolate chips and white chocolate chips and give a final stir, reserving some M&M's and mini chocolate chips for topping cookie bars.
Transfer cookie dough to prepared baking dish. Press additional M&M'S, mini chocolate chips and white chocolate chips into top of cookie dough.
Bake 30 to 35 minutes on oven rack in lower third of oven to prevent over browning. Let cool completely and cut.
These Halloween cookie bars where even better when cut. The Cookies & Screeem M&M’s are black on the outside and white in the center, so they add to the black and white theme of the cookie bars. Super cute and perfect for Halloween parties!
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