Bring water to a boil in a pot with plenty of salt and a drizzle of olive oil. Add the tagliatelle and cook for 10 minutes until al dente.
While the pasta cooks, cut the pineapple into small pieces. Beat an egg separately. Coat the pineapple cubes in flour and then in the beaten egg before frying them in a pan with the prawns. Cook for a few minutes until golden. Once the pasta is ready, drain and serve together with the pineapple and prawns.
