Fill pot to the halfway mark with water, then cook pasta according to the instructions given on the package

Salt the water to add flavor

In a separate pan, place the butter and garlic and slowly saute until you can smell the garlic (low to medium heat, 1 minute)

Add in flour and whisk ( about 30 seconds), the texture should be thick once you have finished whisking

While whisking, add in the milk and pepper and continue to stir until the entire mixture has thickened (low to medium heat, 7-10 minutes)

Once sauce is completely thickened, add in Parmesan cheese and dried parsley into the sauce

Add cooked pasta to sauce and mix together until the pasta is completely coated in the sauce