We have potatoes that we grew so Yohboh asked for this:
I read a couple of recipes and made it up as I went along:

Potato Gratin
1 cup of milk
1/2 cup heavy cream
2 cloves of garlic, minced
10 gratings of nutmeg
2 pounds of potatoes sliced wafer thin (I used a knife--I don't need no stinking mandolin)
Salt
Pepper
Parmesan cheese
Preheat oven at 400.
Put the milk, cream, garlic and nutmeg in a small pot and let it come to a simmer.
Put the first layer of potatoes in a greased 8 x 8 pan. Season liberally with salt and pepper. Add a thin layer of cheese. Pour some of the hot milk mixture over the potatoes.
Repeat the previous paragraph until you run out of potatoes. Pour on the rest of the milk. Then put another fnal layer of cheese.
Put in the oven and let bake for about 45 minutes to an hour.
Yohboh really liked this.