Blueberry/Apple Gratin

This one's easy:

Leftover dough
Leftover blueberries
1 1/2 apples, peeled, sliced
1 cup sugar
1/2 tsp cinnamon
1 shake nutmeg
some coconut milk
2 Tbs flour
Maybe some butter, I don't remember.

I think that's all. Throw it together in a gratin pan small enough for the task and bake at 375 for about an hour.