I love coffee cake. I should really make it more often. Homemade tastes so much better than store bought.
1½ cups all-purpose flour
2¼ teaspoons baking powder
½ cup sugar
½ teaspoon salt
½ teaspoon cinnamon
1 egg
½ cup milk
¼ cup shortening
1½ cups chopped tart apples

Streusel topping:
¼ cup sugar
2 tablespoons flour
1 tablespoon butter
½ teaspoon cinnamon

Sift flour, measure and resift 3 times with baking powder, sugar, salt and cinnamon. Beat egg, add milk and melted shortening, and pour into dry ingredients; then add the raw apples and mix well. Turn into a well-buttered 8-inch square baking pan. Mix together ingredients for streusel topping to make a crumbly mixture and sprinkle over top of batter. Bake in a moderately hot oven (400° F.) about 30 minutes or until done.  The Modern Family Cookbook