Soak the saffron threads in the measurement water for 15 minutes.
Use the pasta dough ingredients to prepare the dough following the method on
Roll the pasta dough out into long sheets (see
Melt the butter in a large frying pan over a low heat, add the onion and cook, stirring occasionally, for 7–8 minutes until the onion is soft and translucent. Increase the heat to high and add the vodka or wine. Boil rapidly for 2 minutes, then remove from the heat.
Cook the pasta in a large saucepan of salted boiling water for 2–3 minutes until al dente. Drain and stir into the butter sauce. Serve immediately with the grated Parmesan.