Potluck Peach Cake

Cake: 1 white cake mix 1/4 cup flour 1 t baking powder 3 eggs 1 (19 oz) peach pie filling 1/2 t lemon extract Topping: 1/2 cup sugar 1/2 cup flour 3/4 t cinnamon 1/4 cup softened butter Combine all the cake ingredients in a mixer bowl. Beat on medium for 2 minutes or until mixed. Spread in a greased 9 by 13 pan. In small bowl combine all topping ingredients. Cut in butter until crumbly. Sprinkle over batter. Bake for 40 to 45 minutes or until tester comes out clean in center of cake. Cool at least 30 minutes before cutting.