This is the best au gratin potatoes recipe you will ever find. Pinned thousands of times, discover what heaven on a fork tastes like.
I love cheese. You don't have to use as much as I do, but why not? Heaven.
AU GRATIN POTATOES FROM SCRATCH
4 to 5 large potatoes, thinly sliced
4-1/2 TBS butter
4-1/2 TBS flour
3 TBS onion, grated
1/2 tsp salt
3 cups milk
1-1/2 to 2 cups evaporated milk or half-and-half
3 cups cheddar cheese, grated (divided)
PREHEAT oven to 400 degrees. Butter a 9x13 casserole dish; set aside.
In a medium-size saucepan, melt butter over medium heat. Mix in the flour and salt, and stir constantly with a whisk for one minute. Stir in milk and evaporated milk (or half-and-half).
Cook and whisk constantly until mixture has thickened. Stir in 2 cups of cheese and grated onion. Continue stirring until melted, about 30 to 60 seconds.
Place 1/3 of the potatoes in the bottom of the prepared dish. Pour 1/3 of the sauce over that; repeating until all is gone. Cover with foil and bake for 1 hour. Sprinkle the remaining cup of cheese over all. Uncover and bake for 30 minutes until melted and bubbly.
I have more than just an old fashioned scalloped potatoes recipe, check out more potato recipes below.