Ingredients
2 1/8 cups flour
1/2 tsp salt
1/2 tsp baking soda
12 TBSPs butter (1 1/2 sticks), melted and cooled slightly
1 cup brown sugar
1/2 cup white sugar
1 large egg
1 large egg yolk
2 tsps vanilla extract
1 12oz bag mini M&M's, divided
Preparation
