This Au Gratin Potatoes recipe is one of the most showstopping potato side dishes you can make. It’s absolutely holiday-worthy, but also simple to prepare.
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AU GRATIN INGREDIENTS:
►5 Tbsp unsalted butter, divided
►1/4 cup all-purpose flour
►2 1/2 cups milk (any kind)
►1/2 cup heavy whipping cream
►1 1/4 tsp fine sea salt, or to taste
►1/4 tsp freshly ground black pepper
►1 tsp onion powder
►1/2 tsp garlic powder
►2 cups grated gruyere cheese
►3 lbs Yukon gold potatoes