Overnight Coffee Cake

2 c. flour
1 tsp. cinnamon
1/2 tsp. salt
2 tsp. baking powder
1/2 tsp. baking soda
1/2 c. sugar
1/2 c. brown sugar
2/3 c. butter
2 beaten eggs
1 c. yogurt, buttermilk, sour milk, or sour cream

Cut butter in into dry ingredients. Add liquids and stir until blended. Pour into a 9x13 greased pan. Cover and refrigerate

Crumb topping:
1/4 c. brown sugar
1/2 c. flour
1/2 c. nuts
1/2 tsp. cinnamon
1/2 tsp. nutmeg

Combine all ingredients and sprinkle over the top before baking. Bake at 350 degrees for 30 min. or until toothpick inserted comes out clean.