Preheat the oven to 350° F
In a large mixing bowl, stir the peaches with the sugar, nutmeg, cinnamon, and Peach Habanero Pepper Jelly.
Prepare the peaches first so that the spices and jelly have time to melt into the fruit and its juices.
In a medium casserole dish, melt the butter. The easiest way to do this is by placing the entire unwrapped stick of butter in the dish and putting it in the oven while it is preheating. Just keep an eye on it so that you don't burn the butter.
In a medium mixing bowl, mix together the yellow cake mix, egg, and milk; set aside
Pour half the cake mix over the butter; do not stir.
Dump the peach mixture over the cake mix and butter.
Pour the rest of the cake mix over the peaches. Don’t worry if all the peaches aren’t covered. Sprinkle a little extra sugar over the top.
Bake in a 350° F oven until the cake mixture is done and the peaches are soft, about 35 minutes. After 30 minutes, check every few minutes.
Serve hot or cold. Serve with or without ice cream.