In medium bowl combine smashed graham crackers, oatmeal and melted butter. Stir until graham crackers look wet and are clumpy to make the cracker crust. Form the cracker crust at the bottom of the pan and set aside. Peel and core apple and cut into ¼ inch strips. In a medium mixing bowl places apples, sugar, cinnamon and brown sugar stir all ingredients together until coated evenly. Place apple filling into the loaf pans on-top of cracker crust and coat with any remaining cracker crust.In any size CanCooker place the 2 piece stainless steel rack in the bottom of the cooker and pour water in. Cook on a medium low heat using a Multi-Fuel burner, stove or other heat source and let steam. Place loaf pans on rack and steam for 15-20 minutes. Remove from CanCooker and let stand for 10 to 15 minutes to cool and enjoy.