Put the pasta in a large saucepan of boiling salted water and cook for the specified time, usually about 10 minutes. Drain well.
In a large saucepan, melt the butter, add the garlic and leek, and sauté for 3–4 minutes. Add the white wine and continue to cook until most of the wine has reduced.
Add the hot, drained pasta, mixing well with the leek, and cr