4 c. flour
1 c. sugar
1 c. brown sugar
1/2 lb. butter

Mix above ingredients together. Take 1 1/2 cups out and save for topping. Add: 1 c. dark molasses 2 tsp. baking soda

Place in greased and floured, 9 x 13-inch pan. Top with crumb mixture. Bake at 350 degrees for 45 minutes.