2 1/4 c. all-purpose flour
1/2 tsp. salt
1/2 tsp. baking soda
12 tbsp. butter, melted
1 c. brown sugar
1/2 c. white sugar
1 large egg
1 large egg yolk
2 tsps. vanilla extract
1 1/2 c. M&M's divided
Preheat oven to 325.
Line a 9x13 baking pan with greased parchment paper. Set aside.
In a medium bowl, stir together flour, salt, and baking soda. Set aside.
In a large bowl, cream together melted butter, brown sugar, and white sugar.
Stir in large egg and egg yolk until combined.
Stir in vanilla extract.
Combine dry ingredients with wet ingredients, stirring just until flour is incorporated. Don't over stir.
Add in 1 c. of M&M's.
Press dough into an even layer in prepared pan.
Press remaining M&M's lightly on the top.
Bake for 25-30 minutes.
Remove from pan and let cool completely.
Cut into squares.