Au Gratin Potatoes
Au Gratin Potatoes
2 lbs. Yukon gold or any higher starched potato
1/2 cup chopped yellow onion
3 cloves of minced garlic
3 tbsp butter
3 tbsp of all purpose flour
2 cups whole milk
1/2 cup heavy cream
1 1/2 tsp salt
1/2 tsp pepper
3/4 cup shredded Gruyere cheese
3/4 cup shredded cheddar cheese
1/4 cup shredded Parmesan cheese
Chopped parsley for garnish
Preheat oven to 350 degrees and butter a 2 quart casserole dish.
Using a mandolin, sharp knife or the slicing side on a boxed grater, thinly slice all the potatoes. You do not need to peel the potato first.
Melt the butter in a large stockpot over medium high heat. Add flour to the pot and whisk until smooth. Cook for 1-2 minutes.
Add onions and garlic to the pot and stir to combine.
Add milk, cream, salt and pepper to the pot and whisk until the mixture has thickened, This will take 2-3 minutes.
Add grated Gruyere and cheddar cheeses to the mixture. Whisk until all the cheese has melted.
Take your sliced potatoes and add them to the cheese mixture. Using a rubber spatula, stir to combine the potatoes and the cheese mixture. The mixture will be thick.
Pour mixture into the buttered baking dish and top with the Parmesan cheese. Cover with foil and bake for 1 hour. After an hour, take the foil off and cook for another 15-20 minutes until the potatoes are bubbly and browned on the top. Let the potatoes sit for 5 minutes before serving.
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