Creating Classic Mac & Cheese can be easy if you follow these straightforward steps:

1. Cook the Pasta: In a large pot, bring salted water to a boil. Add the elbow macaroni and cook until al dente, about 6-8 minutes. Drain and set aside.

2. Make the Roux: In the same pot, melt the butter over medium heat. Once melted, whisk in the flour and cook for 1-2 minutes until golden.

3. Add Milk: Gradually whisk in the whole milk, ensuring no lumps remain. Continue to whisk until the mixture thickens, about 5-7 minutes.

4. Season the Sauce: Stir in the garlic powder, onion powder, paprika, black pepper, and salt. Mix well.

5. Add Cheese: Remove the pot from heat, then add the shredded cheddar and grated Parmesan. Stir until the cheese is completely melted and the sauce is smooth.

6. Combine with Pasta: Add the cooked macaroni to the cheese sauce. Stir until the pasta is well coated.

7. Transfer to Baking Dish: Pour the mac and cheese into a greased 9×13-inch baking dish.

8. Prepare Topping (optional): If using breadcrumbs, mix them with melted butter and sprinkle evenly over the mac and cheese.

9. Bake: Preheat your oven to 350°F (175°C). Bake the mac and cheese for 25-30 minutes, or until golden and bubbly on top.

10. Let it Cool: Allow the dish to cool for a few minutes before serving to let the cheese set.

These steps will guide you in creating the ultimate Classic Mac & Cheese that is both delicious and satisfying.