Preheat oven to 375*F.
In a small bowl add sugar, cinnamon, nuts and raisins and stir to combine.
Prepare apples by washing well and cutting out just the core. An apple corer is very helpful if you have one.
Once the cores are removed, place apples into a baking dish (9"x9" or similar). Stuff each apple with sugar mixture, pressing as much into the cavity as you are able. Any excess mixture can just be sprinkled into the bottom of the dish.
Cut the Tablespoon of butter into 4 or 6 pieces and press a piece of butter onto the top of each filled apple (as pictured in blog post).
Pour very hot/boiling water into the baking dish, pouring around the apples, not directly on top of the apples.
Bake in preheated oven for 30-40 minutes until apples are tender, but not mushy.
Allow to cool slightly, then enjoy as is or topped with whipped cream or vanilla ice cream. Any apples leftover can be stored in the refrigerator and heated in the microwave the following day.