Place a large pan of salted water over a high heat and bring to the boil.
Add the linguine. and cook according to the package instructions.
Cut the ham into small chunks and put to one side.
Add a little olive oil to a frying pan and fry the ham
Drain the pasta once cooked keeping a mug of the pasta water for later.
Return the linguine to the pan and add the ham. Take it off the heat.
Add the lemon juice, egg yolks, diced chilli and crème fraîche and mix well.
Add the basil and parmesan cheese and mix again.
Mix everything together and add a little of the pasta water to thin the mixture. The sauce should be lovely and creamy and shiny. It will coat the linguine and ham.
Serve immediately in warmed bowls and top with additional grated cheese.