Macaroni and Cheese Recipe | Tyler Florence | Food Network

Ingredients

• 4 cups (1 pound) elbow macaroni
• 5 tablespoons unsalted butter
• 4 cups milk
• 1/2 medium onion, stuck with 1 clove
• 4 cloves garlic
• 1 bay leaf
• 3 sprigs fresh thyme
• 1 teaspoon dry mustard
• 2 tablespoons all-purpose flour
• 2 cups grated Cheddar, plus 1 cup in big chunks
• 1/2 cup grated Parmesan
• Kosher salt and freshly ground black pepper