Bring 3 litres / 6 pints of water to the boil in a large saucepan and season with 60g salt.
Add the pappardelle and cook in rapidly boiling water for approximately 12 minutes, until al dente. Drain well, reserving around 200ml of the cooking water.
Return the pasta to the pan, add the reserved cooking water, butter, a drizzle of olive oil, freshly ground black pepper, salt to taste, lemon juice and chopped parsley. Emulsify together.
Simmer the beef ragù gently until rich and sticky.
To serve, place the pasta on the plate and spoon the beef ragù generously over the top.