Buffalo Chicken Macaroni and Cheese

INGREDIENTS

• Sliced carrots and celery, for serving
• 1 cup panko bread crumbs
• 1 large egg
• 3 cups whole milk, plus 2 tablespoons
• 1/3 cup all-purpose flour, plus 1 cup
• 2/3 cup hot sauce (recommended: Frank's Red Hot)
• 3/4 teaspoon salt
• 3 cups grated white Cheddar, divided
• 1 1/2 cups vegetable oil
• 1 pound dry elbow macaroni
• 1 pound chicken tenderloins
• 3 cups grated mozzarella cheese, divided
• 3/4 teaspoon freshly ground black pepper
• 1/2 cup beer
• 3/4 pound applewood smoked bacon
• 1/2 cup crumbled blue cheese
• 1 tablespoon minced garlic
• 1/2 cup (1 stick) unsalted butter, plus 2 tablespoons, plus more for baking dish