Ingredients Original recipe yields 12 servings Ingredient Checklist 10 cups all-purpose apples, peeled, cored and sliced 1 cup white sugar 1 tablespoon all-purpose flour 1 teaspoon ground cinnamon ½ cup water 1 cup quick-cooking oats 1 cup all-purpose flour 1 cup packed brown sugar ¼ teaspoon baking powder ¼ teaspoon baking soda ½ cup butter, melted Directions Instructions Checklist Step 1 Preheat oven to 350 degrees F (175 degree C). Step 2 Place the sliced apples in a 9×13 inch pan. Mix the white sugar, 1 tablespoon flour and ground cinnamon together, and sprinkle over apples. Pour water evenly over all. Step 3 Combine the oats, 1 cup flour, brown sugar, baking powder, baking soda and melted butter together. Crumble evenly over the apple mixture. Step 4 Bake at 350 degrees F (175 degrees C) for about 45 minutes.