Preheat oven to 350 degrees F.
Cover bottom of 8″ square pan with uncooked oatmeal. Mix together sliced apples, juice, raisins, cinnamon, nutmeg, and honey; cover oatmeal with mixture.
Cover tightly with foil and bake 1 hour. Remove foil. Sprinkle cobbler with Grapenuts. Return to oven and bake 15 minutes.
Serve warm or cold.
Servings: 8 generous servings