▢1 (16-ounce) package (about 4 cups) penne ▢3 tablespoons unsalted butter ▢2 teaspoons minced garlic ▢3 tablespoons all-purpose flour ▢1 cup milk ▢1 cup chicken broth ▢1 cup grated Parmesan cheese ▢2 teaspoons dried parsley ▢garlic salt with parsley flakes or salt to taste ▢pepper to taste ▢½ cup shredded mozzarella cheese or additional Parmesan cheese optional
Cook pasta according to package directions. Drain and set aside.
Meanwhile, in a large saucepan, melt butter over medium heat. Add garlic and cook, stirring, for 1 minute.
Add flour and cook, stirring constantly, for 1 minute more.
Add milk and broth and cook, stirring constantly, until the sauce boils and thickens about 5 minutes.
Add Parmesan, parsley, garlic salt, and pepper. Continue stirring until the cheese has melted.