Finely chop the onion
Soak saffron in a small amount of warm water
Heat olive oil in a pan and sauté the chopped onion
Add rice and sauté until translucent
Pour in white wine and simmer until reduced
Gradually add the saffron water and broth while slowly simmering
Once the rice is cooked, mix in Parmesan cheese and butter
Season with salt and pepper
Serve in a bowl to finish