# What You'll Need:
→ Vegetables
01 - 1 pound fresh asparagus spears, trimmed
→ Dairy
02 - 2 tablespoons unsalted butter
03 - 2 tablespoons all-purpose flour
04 - 1 cup whole milk
05 - 1/2 cup heavy cream
06 - 1 cup shredded Gruyère or Swiss cheese, divided
07 - 1/4 cup grated Parmesan cheese
→ Seasonings
08 - 1/2 teaspoon salt
09 - 1/4 teaspoon ground black pepper
10 - 1/4 teaspoon ground nutmeg (optional)
→ Topping
11 - 1/2 cup fresh breadcrumbs
12 - 1 tablespoon unsalted butter, melted
# Directions:
01 - Preheat the oven to 400°F. Lightly grease a medium baking dish.
02 - Bring a large pot of salted water to a boil. Add the asparagus and blanch for 2 to 3 minutes until tender and bright green. Drain and pat dry. Arrange asparagus evenly in the prepared baking dish.
03 - In a medium saucepan, melt 2 tablespoons butter over medium heat. Stir in the flour and cook for 1 minute, stirring constantly.
04 - Gradually whisk in the milk and heavy cream. Continue whisking and cook until the sauce thickens, about 3 to 4 minutes.
05 - Remove the saucepan from heat. Stir in half the shredded Gruyère and all the Parmesan cheese. Season with salt, black pepper, and nutmeg if using.
06 - Pour the cheese sauce evenly over the asparagus. Sprinkle the remaining Gruyère on top.
07 - In a small bowl, combine the fresh breadcrumbs with the melted butter. Sprinkle evenly over the casserole.
08 - Bake for 20 to 25 minutes until the topping is golden brown and the sauce is bubbly.
09 - Let the dish stand for 5 minutes before serving to set.