Grandma's Coffee Cake

1 1/2 cups sifted flour
2 1/2 tsp baking powder
1/2 tsp salt
1/2 cup sugar
1 egg, beaten
1/4 cup Wesson oil
3/4 cup milk

Stir together dry ingredients.  Add egg, oil, and milk, stirring till mixed.  Pour in greased pan.  (8 inch round)  Sprinkle with topping.  Bake at 350 for 30-35 minutes. 

Topping:
1 Tbsp flour
1 tsp cinnamon
1/4 cup brown sugar
1 Tbsp oil
1/2 cup nuts (optional)