1/2 cup chilled butter 1/2 cup chopped nuts (optional)
About 3 quarts sliced apples 3 tablespoons corn starch 1/2 teaspoon cinnamon 2 tablespoons lemon juice
Preheat oven to 375ºF. Prepare two 8-inch square pans by spraying with cooking spray. (Alternately, use one 9 x 13 pan.)
In a mixing bowl combine the flour, oatmeal, brown sugar and cinnamon. Mix well. Drop in the cold butter and cut in using a pastry blender until nice and crumbly. Stir in the nuts, if using. Set mixture aside
In a large mixing bowl, combine the apple slices, cornstarch, 1/2 teaspoon of cinnamon and lemon juice. Toss to combine. Divide apple mixture between the two prepared pans. It’s okay if the apples mound up a bit over the edges of the pan.
Carefully, divide the crumb mixture between the two pans. Just sprinkle it all over the apples evenly.
Place the two pans onto a more sturdy baking sheet and pop in the oven for 1 hour.
Serve warm or at room temperature.
To freeze, allow to cool completely. Then cover with heavy duty foil, place in a large freezer bag, label and freeze. To serve, pop into a 375ºF from frozen, foil removed, for about 35 minutes, or until hot throughout.