Allow the wine to reduce, then reduce the heat and add your butter. Mix in the butter, then add your cream, bring everything together, then set it aside until your pasta is ready.
When your pasta is done, strain it then add it to your pan with the sauce, and toss everything together.
Allow the pasta to cool in the pan for a bit (off of the heat), then mix in an egg yolk, along with grated parmesan cheese. Check for seasoning, and add salt and pepper as needed, then mix in sliced basil and several drops of lemon juice.
Finish with more basil on top, then serve and enjoy.