1: Preheat the oven to 400°F.
2: Cook the pasta according to the package instructions.
3: In a pan, melt the butter and add the flour, stirring until combined.
4: Gradually add the milk, whisking until the mixture thickens.
5: Stir in the cheddar cheese until melted.
6: Combine the cooked pasta with the cheese sauce, adding salt, pepper, and garlic powder to taste.
7: Pour the mixture into a baking dish and bake for 20 minutes.
8: Broil for an additional 5 minutes until golden brown.
