Prepare the pasta according to the pasta directions. When it's finished, drain it but do not rinse. Return to the pot.
8 ounces (225 grams) dry fettuccine
Meanwhile, in a medium skillet over medium heat, melt the butter.
1 tablespoon (14 grams) butter
Add the minced garlic and lemon zest and cook until the garlic is soft β about 1-2 minutes.
2 cloves garlic, 2 teaspoons lemon zest
Stir in the flour and cook, stirring constantly, for 1 minute.
1 tablespoon flour
Whisk in the milk and salt and cook, whisking constantly, until the sauce has thickened β about 3 minutes.
1 1/2 cups (355 ml) milk, 1/4 teaspoon salt
Add the cream cheese and Parmesan, whisk until completely melted.
3 tablespoons cream cheese, 1 cup (85 grams) Parmesan
Add the sauce to the prepared pasta and mix until combined. If it's too thick for you, add a little more milk.
Top with more cheese, parsley and pepper if desired.
Serve immediately and refrigerate any leftovers for up to 4 days.