Buttermilk Parmesan Potatoes Recipe

Preheat oven to 350 degrees F (175 degrees C).

Lightly grease 9x13 inch baking dish. Arrange potatoes over the bottom of the dish and set aside.

Melt 1 tablespoon butter in a saucepan over medium heat. Add the garlic and onion; cook and stir until the onion is transparent about 5 minutes. Stir in 3 tablespoons butter until melted. Sprinkle the flour salt and pepper over the onion mixture. Cook and stir until mixture bubbles and thickens about 2 minutes. Continue to stir the flour mixture while gradually pouring in the milk and buttermilk and return the mixture to boiling. Stir in 3/4 cup Parmesan cheese; cook for 2 minutes until melted and mixture is smooth. Pour the mixture over the potatoes in the baking dish stirring to coat evenly.

Bake in preheated oven for 1/2 hour and stir. Bake 1/2 hour longer stir the potato mixture again and sprinkle with remaining 1/4 cup Parmesan cheese. Bake for 20 minutes more.