Grandma's favorite coffee cake

1 1/2 cups shifted flour
3/4 cup sugar
2 1/2 tsp baking powder
1/4 cup shortening (I use butter)
3/4 cup milk
1 egg
Heat oven to 375°. Grease a 9x9 pan and set aside.
Blend all the wet ingredients, then add to dry ingredients, mix half a minute. Spread in pan and then sprinkle with topping: mix 1/3 cup brown sugar, 1/4 cup flour, 1/2 tsp. Cinnamon, and 3 T. Butter until crumbly. Bake in heated oven 25-30 minutes or until done in the middle. This recipe works great if you double it and bake it in a 9x13 pan.