Apple Crisp

10 cups all-purpose apples, peeled, cored and sliced about 5-6 large (or more)

1 cup white sugar

1 tablespoon all-purpose flour

1 teaspoon ground cinnamon (Change to 1 TB cinnamon)

+ 1.5 TB corn starch to thincken

1 cup quick-cooking oats

1 cup all-purpose flour

1 cup packed brown sugar

1/4 teaspoon baking powder

1/4 teaspoon baking soda

1/2 cup butter, melted