Apple Mixture: – 1 medium apple – 1 Tbsp. cornstarch – 1 Tbsp. sweetener or sugar – 1/2 tsp. cinnamon Crisp Topping: – 1 Tbsp. butter melted – 1 1/2 Tbsp. Oatmeal – 1 1/2 Tbsp. flour – 1 Tbsp. brown sugar – 1/2 tsp. cinnamon – pinch salt