1/2 c. butter
1/2 c. shortening
1 c. brown sugar
1/2 c. sugar
1 tsp. vanilla
2 eggs
2 1/2 c. flour
1 tsp. baking soda
1 lb. M&M'S®

Cream shortening and sugars together. Add vanilla and eggs. Mix well. Add flour and baking soda. Mix. Stir in M&M'S®. Bake at 375 degrees for 10 minutes.