Using a paring knife cut a circle around the core leaving approximately 1 inch uncut at the bottom of the apple (you can also cut out a part of the core and use a spoon to remove the rest, leaving 1 inch at the bottom of the apple)
Add coconut sugar, cinnamon, raisins, walnuts and butter to the hole in the apple.
Take a baking dish and add enough water to cover the bottom.
Place the filled apple into the baking dish.
Bake on 350 for 30-35 minutes, until the apple is soft.
Once done, take a spoon and stir the contents in the center of the apple to mix. Spoon some over the apple.