
Add the saffron threads to a small ramekin with 1 tablespoon of hot water and leave to steep.
Finely chop the onion and sauté it for a few minutes in 1-2 tablespoons of olive oil until softened and translucent.
Remove the sausages from their skins and add them to the onion alongside the bay leaf. Brown the sausage whilst breaking the meat up with a wooden spoon.
Once browned, add the white wine and saffron and reduce for 1-2 minutes until you can no longer smell the alcohol.
Add the passata and a pinch of salt and pepper, stir to combine then cover and let it simmer on a medium-low heat for 20 minutes.
While the sauce is simmering, bring a large pot of water to a boil and salt it well.
After 20 minutes, remove the lid from the sauce, add the fresh basil and continue to simmer the sauce for another 5-7 minutes uncovered.
Add the pasta to the water and cook until al dente.
Once cooked, transfer the pasta to the sauce and stir until well coated. Add the grated Pecorino cheese and stir in until melted, serve.