Ultimate Comfort: My Grandmother's Baked Mac and Cheese with Decadent Flavor

Ingredients

• 1 lb (450 g) elbow macaroni
• 4 tbsp (56 g) unsalted butter
• 1/4 cup (30 g) all-purpose flour
• 4 cups (960 ml) whole milk
• 1 tsp (5 g) garlic powder
• 1/2 tsp (3 g) onion powder
• 1/2 tsp (3 g) mustard powder
• 1 tsp (6 g) salt
• 1/2 tsp (2 g) black pepper
• 2 cups (200 g) shredded sharp cheddar cheese
• 1 cup (100 g) shredded mozzarella cheese
• 1 cup (100 g) grated Parmesan cheese
• 1 cup (100 g) panko breadcrumbs
• 2 tbsp (28 g) unsalted butter, melted
• 1/4 tsp (1 g) smoked paprika (optional)
• 1/4 cup (5 g) chopped fresh parsley (for garnish)