These were so delicious! Thank you pinterest, once again. Here is where I found them. LOVING her blog and found some other recipes I might try as well.
2 1/8 cups flour
1/2 tsp salt
1/2 tsp baking soda
12 TBL 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 tsp vanilla
1 (12oz) bag M&M's, divided (I may use less next time...maybe 1/2 a bag to 3/4 of a bag)
Combine flour, salt & baking soda. Set aside.
Add sugars to melted butter. Add eggs & vanilla.
Add flour mixture to butter mixture. Do not over mix. Fold in 1/2 the M & Ms. Pat into a 9 X 13 pan (sprayed with cooking spray). Top with remaining M & Ms, pressing them in slightly.
Bake at 325 for 24 to 28 minutes. Cut into bars when cool.