Follow these simple steps to create your amazing baked macaroni & cheese:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Cook the Pasta: In a large pot, bring salted water to a boil. Cook the elbow macaroni according to package instructions until al dente. Drain and set aside.
3. Make the Cheese Sauce: In a large saucepan, melt the butter over medium heat. Once melted, whisk in the flour and cook for 1-2 minutes until golden.
4. Add Milk: Gradually add the milk, whisking constantly to avoid lumps. Cook until the mixture thickens, about 5-7 minutes.
5. Add Cheese: Remove the saucepan from heat and stir in the cheddar and mozzarella cheeses until melted and smooth.
6. Season: Add garlic powder, onion powder, mustard powder, paprika, salt, and pepper to taste. Mix until well combined.
7. Combine Pasta and Sauce: Add the cooked macaroni to the cheese sauce, stirring to coat the pasta evenly.
8. Transfer to Baking Dish: Pour the macaroni and cheese mixture into a greased 9×13-inch baking dish.
9. Prepare Topping (Optional): If using breadcrumbs, combine them with melted butter in a small bowl. Sprinkle the breadcrumb mixture evenly over the macaroni.
10. Bake: Place the baking dish in the preheated oven and bake for 30-35 minutes, or until the top is golden brown and bubbly.
11. Cool Slightly: Remove from the oven and let it cool for 5-10 minutes before serving. This helps the dish set up a bit for easier serving.

These steps will guide you in creating a delicious baked macaroni & cheese that will impress everyone at your table.