You will need 1 apple for every 2 servings.
Preheat oven to 350 deg. F.
Slice the apple in half, length-wise- with a spoon, remove the apple core and shape the heart from around the apple core's center. Fill the center with crabapple jelly. Place apples filled side up in a glass or ceramic baking dish. Roast 30 minutes, until fork tender. Warm 1 TB jelly and spread over dessert plate. Place apple filled side up on the plate.