Best homemade cookie cake ever 1cup + 1 tbs AP Flour 1/4 tsp baking soda 3/4 cup butter softened 1/2 cup brown sugar 1 egg 1 tsp vanilla extract 1 cup of M’s _ Preheat oven to 325* Cream butter and sugar. Add in egg and extract and blend. The combine flour and baking soda- mix until completely incorporated. Fold in the M’s. Dump into a greased 9.5″ pie pan and bake for 25-30 mins.