Thick and Chewy M&M Cookie Bars

THICK & CHEWY M&M COOKIE BARS

12 Tbsp butter, melted

1 cup brown sugar
1/2 cup white sugar

1 large egg
1 large egg yolk
2 tsps vanilla extract

1/2 tsp salt
1/2 tsp baking soda

2 1/8 cups flour
1 12oz bag M&M's, divided

1. Preheat the oven to 325 degrees. Line a 9X13-inch baking pan with foil, letting the excess hang over the edges of the pan by about 1 inch so you can grab those edges and pull the bars from the pan after they have baked. 

2. Whisk the melted butter and sugars in a large bowl until combined. Add the egg, egg yolk, and vanilla and mix well. Mix in the flour, salt, and baking soda. Using a rubber spatula, fold the dry ingredients into the egg mixture until just combined; do not over mix. Fold in 1 cup of M&M's and turn the batter into the prepared pan, smoothing the top with the spatula. Sprinkle remaining M&M's on top and press in slightly.

3. Bake until the top of the bars is light golden brown, slightly firm to the touch, and edges start pulling away from sides of pan, 20-22minutes. DO NOT OVERBAKE!! Cool on a wire rack to room temperature. Remove the bars from the pan by lifting the foil overhang and transfer them to a cutting board. Cut into squares and serve.