Hard-Boiled Egg Casserole

Ingredients

• 0.25 cup butter
• 0.25 cup all-purpose flour
• 2 cups half-and-half
• 0.5 teaspoon salt
• 0.25 teaspoon ground black pepper
• 0.25 teaspoon garlic powder
• 0.25 teaspoon dry mustard
• 1 cup shredded Gruyere cheese
• 8 hard-boiled eggs, peeled and halved
• 0.5 cup freshly grated Parmesan cheese

Steps

1. Preheat the oven to 350 degrees F (175 degrees C). Butter a 9-inch square baking dish.
2. Melt butter in a saucepan over medium-low heat. Add flour and whisk until dissolved, 2 to 3 minutes. Gradually add half-and-half and whisk until sauce is thick and smooth, about 5 minutes. Season with salt, pepper, garlic powder, and mustard. Stir in Gruyère cheese until melted and smooth.
3. Arrange eggs, cut-side down, in the prepared baking dish. Pour sauce over eggs and sprinkle with Parmesan cheese.
4. Bake in the preheated oven until bubbly and golden brown, 20 to 25 minutes.