CREAMY POTATO GRATIN
4 1/2 pounds all-purpose potatoes
2 cups whole milk
2 cups heavy cream
1 onion, peeled
2 cloves garlic, minced
1 tablespoon salt
Approximately 1/4 cup unsalted butter
Preheat the oven to 500 degrees F.Peel the potatoes and cut them into slices, neither especially thin nor especially thick (approximately 1/2-inch) and put them into a large saucepan with the milk, cream, onion, minced garlic and salt. Bring to the boil and cook at a robust simmer or gentle boil until verging on tender, careful not to overcook.
Use some of the butter to grease a large roasting pan (15 by 12-inches) and then pour the almost sludgy milk and potato mixture into it. Dot with remaining butter and cook in the oven for 15 minutes or until the potato is bubbly and browned on top. Remove, let stand for 10 to 20 minutes and then serve.
Note: Sprinkle the top with grated cheese of your choice for cheesy goodness.