Cowboy Coffee Cake

Got this recipe from my Basket Weaving Instructor- delicious!
Cowboy Coffee Cake

Ingredients:
1 c whole wheat flour
1 1/2 c white flour
2 c brown sugar, packed
2/3 c butter (softened or just melted, not boiling)
2 t baking powder
1/2 tsp baking soda
1/2 tsp cinnamon
1/2 tsp nutmeg
1 c sour milk (I used sour cream, buttermilk would probably work also)
2 eggs, beaten

Directions:
Preheat oven to 375F.
Combine the first 4 ingredients.  Mix together and remove 1/2 cup of the mixture to save for topping.
Add the rest of the dry ingredients to the bowl and mix.  Add the wet ingredients.
Spray 2, 8x8 or 1, 9x13 pans with non stick spray. 
Dump mixture in to baking pans and top with crumb topping. 
Bake for 25-30 minutes.