Caesar Potato Casserole

This Caesar potato casserole is scalloped potatoes with a lively twist. Potato slices are baked in a creamy, lemony sauce reminiscent of Caesar salad, with plenty of Parmesan cheese in between.

Preparation Details

Prep Time: 25 mins

Cook Time: 1 hr

Total Time: 1 hr 25 mins

Servings: 12

Ingredients

• 1/4 cup butter
• 3 cloves garlic, minced
• 1/4 cup all-purpose flour
• 4 cups whole milk
• 1 tablespoon Dijon mustard
• 2 t easpoons Worcestershire sauce
• 1 teaspoon salt, divided
• 1 teaspoon freshly ground black pepper , divided
• 2 teaspoons lemon zest
• 2 tablespoons lemon juice
• 3 pounds russet potatoes , peeled and sliced 1/8-inch thick
• 1 cup thinly sliced onion
• 1 cup grated Parmesan cheese
• chopped fresh chives, for garnish
• cracked black pepper, for garnish

Steps

1. Gather all ingredients.
2. Preheat the oven to 375 degrees F (190 degrees C). Grease a 9×13-inch baking dish.
3. Melt butter in a medium saucepan over medium heat. Add garlic and cook 30 seconds. Stir in flour and cook, stirring constantly, for 1 minute. Gradually whisk in milk, mustard, Worcestershire sauce, 1/4 teaspoon salt, and 1/4 teaspoon pepper. Cook, whisking constantly, until thickened and bubbly, then continue to cook and whisk 2 minutes more. Whisk in lemon zest and lemon juice. Remove from heat.
4. Line bottom of prepared dish with 1/3 of potato slices; sprinkle with 1/4 teaspoon each salt and pepper, followed by 1/3 of onion slices, 1/3 of Parmesan cheese, and top with 1/3 of sauce. Repeat layers once more. Finally top with remaining potatoes, salt, and pepper, followed by remaining onion slices, and sauce.
5. Sprinkle with remaining Parmesan cheese.
6. Bake, uncovered, until potatoes are tender and top is golden brown, 50 to 60 minutes. Let stand 15 to 20 minutes before serving.
7. Garnish with chives and/or cracked black pepper.