Spicy Mac and Cheese Recipe | Sunny Anderson | Food Network

Ingredients

• 1 tablespoon unsalted butter
• 4 slices white bread, cut into 1/2-inch squares
• Kosher salt
• 8 ounces Cheddar cheese, shredded
• 8 ounces Colby cheese, shredded
• 8 ounces pepper Jack cheese, shredded
• 2 cups elbow pasta, cooked until almost al dente
• 2 teaspoons all-purpose flour
• 1/2 teaspoon kosher salt
• 1/2 teaspoon freshly ground black pepper
• 1/2 teaspoon cayenne pepper
• 1/2 teaspoon dry mustard powder
• 1/8 teaspoon grated nutmeg
• 1/4 cup sour cream
• 1 egg, beaten
• 1/4 cup grated Vidalia or sweet onion
• 1 cup heavy cream
• 1 cup half-and-half