Mix flour, baking powder, baking soda, salt and 1 tsp. cinnamon in a bowl and set aside. In another bowl, cream granulated sugar, 1/2 cup brown sugar, and butter. Mix in eggs, buttermilk and flour mixture. Fold in apples. Pour into a 9x13 greased baking pan.
For topping, combine remaining 1/2 cup brown sugar, walnuts, and 1 tsp. cinnamon and sprinkle over batter. Cover with foil and put in refrigerator until next morning.
Uncover and let stand 30 minutes. Bake 45 minutes in a 350°F oven.
Calories From Fat
% Daily Value*
Total Fat 0g
Saturated Fat 0g
Trans Fat 0g
Dietary Fibers 0g
* Percent Daily Values are based on a 2,000 calorie diet.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.