Serves 2 perfectly.
1 large apple (Canada Gris is good)
2 tablespoon flour
2 tablespoons butter, melted
2 tablespoons brown sugar
1/3 cup oats, uncooked
1/4 teaspoon cinnamon
Cut each apple in half along its equator. Using a knife or melon baller, cut out each side of the core, creating a hole.
For the topping: in a small bowl mix together flour, butter, brown sugar, oats, cinnamon and salt. Press this mixture on the top of each apple. Place in a baking dish filled with about a 1/4-inch of water. Bake in preheated oven at 350° until top is browned and apple is tender, about 35 to 40 minutes.