Melt the butter in a large skillet over medium heat.

Add the minced garlic and cook for one minute.

Add the flour and whisk to combine with the butter. Cook for about 5 minutes or until the mixture is bubbly and just slightly darker than when you started.

Place the milk into a microwave safe measuring cup and heat for about one minute until warm.

Pour 1/2 cup of the milk into the flour mixture and whisk until a dough forms. Keep adding the remaining milk, 1/2 cup at a time, whisking after each addition until smooth.

Continue to whisk continually for about five more minutes until bubbly.

Turn off the heat and add the parmesan cheese, salt, pepper, and parsley.

Whisk together until smooth and serve over hot pasta.