Creamy Rosemary Au Gratin Potatoes

Ingredients

• Servings: 4
• 3 tablespoons butter, divided
• 3 tablespoons all-purpose flour
• 1/2 teaspoon sea salt
• 2 cups half-and-half
• 4 russet potatoes - scrubbed, unpeeled, and cut into 1/4-inch slices
• 1 onion, sliced into rings
• 1 tablespoon chopped fresh rosemary
• 1/2 cup shredded cheddar cheese
• sea salt and ground black pepper to taste
• 1 cup shredded cheddar cheese
• 1 pinch paprika

Recipe

Preparation Time: 15 mins Cook Time: 1 hr 35 mins

Ready Time: 1 hr 50 mins


• preheat oven to 400 degrees f (205 degrees c). grease a 1-quart baking dish with about 1 teaspoon butter.
• melt remaining butter in a saucepan over medium heat. add flour and 1/2 teaspoon sea salt; whisk constantly for 1 minute. pour half-and-half into flour mixture, stirring and cooking until mixture has thickened, about 4 minutes.
• layer half the potatoes into the bottom of prepared baking dish. top with onion slices, rosemary, 1/2 cup cheddar cheese, and remaining potatoes; season with sea salt and pepper. sprinkle 1 cup cheddar cheese and paprika over potatoes. pour half-and-half mixture over potato mixture; cover with aluminum foil.
• bake in preheated oven until potatoes are tender, about 75 minutes. remove aluminum foil and continue baking until potatoes are lightly browned, about 15 minutes.