2 cups biscuit mix
2/3 cup applesauce
1/4 cup milk
2 tablespoons sugar
2 tablespoons butter, softened or melted
2 apples, peeled, cored and diced
1 teaspoon cinnamon
1 teaspoon vanilla
1 egg egg, lightly beaten
.
Streusel
1/4 cup biscuit mix
1/4 cup brown sugar
2 tablespoons firm butter
1 teaspoon cinnamon
1/4 cup chopped nuts, if desired

Combine first 9 ingredients. Spread in a lightly greased 3 1/2 quart Crock Pot (or spread in a lightly greased baking dish which fits in a larger sized Crock Pot). Combine streusel ingredients with a fork or pastry blender; sprinkle over the batter.Cover and cook on high for about 2 1/2 hours, until a toothpick inserted in the center comes out clean. Uncover and let cool in the pot. When cool enough to handle, loosen the sides and lift out carefully with a flexible spatula, or loosen sides and invert the pot slightly and remove with your hand (you could hold a small piece of foil or waxed paper).