Step 1

To make the sauce, melt the butter in a large, deep frying pan.

Step 2

Add the garlic and fry until fragrant then add the flour. Whisk in the milk until a smooth sauce forms then add the cream (if using). Turn down the heat and allow to simmer for 5 minutes.

Step 3

Turn the heat off then add the cheese, parsley, lemon and season to taste.

Step 4

Add the cooked pasta and a little of the cooking water, stirring to coat the pasta. Add more pasta water if necessary.

Step 5

Serve immediately.