Potato Side Dishes Delmonico Style

🛒 Ingredients (Check Off As You Measure)

• 2 lbs russet potatoes, peeled and sliced 1/4-inch thick
• 2 tbsp unsalted butter, plus more for greasing
• 1 small yellow onion, finely chopped
• 2 cloves garlic, minced
• 2 tbsp all-purpose flour
• 2 cups whole milk, warmed
• 1 cup sharp cheddar cheese, shredded
• 1/2 cup grated Parmesan cheese
• 1 tsp paprika
• 1/2 tsp salt, or to taste
• 1/4 tsp black pepper
• 2 tbsp fresh parsley, chopped (for garnish)

🍳 Step-by-Step Instructions

1. Preheat your oven to 375°F (190°C). Butter a 2-quart baking dish and layer the potato slices evenly inside.
2. In a medium saucepan over medium heat, melt the butter. Add the onion and garlic, sautéing until soft, about 3 minutes. Stir in the flour and cook for 1 minute, whisking constantly.
3. Slowly pour in the warm milk, whisking until smooth. Cook for 5-7 minutes until the sauce thickens, then remove from heat. Stir in the cheddar, Parmesan, paprika, salt, and pepper until melted and creamy.
4. Pour the cheese sauce over the potatoes, making sure they're well coated. Cover the dish with foil and bake for 30 minutes, then remove the foil and bake for an additional 15-20 minutes until the top is golden and bubbly.
5. Let rest for 5 minutes, then garnish with fresh parsley and serve warm.