Heat the stock and bloom the saffron
8 minKeep the stock in a separate saucepan just below a simmer; adding cold liquid would stop the cooking and toughen the outside of the rice grains. Crush the saffron threads in a small bowl with one ladle of hot stock and set aside. Let it steep for at least 10 minutes, until the liquid turns orange. If you are using homemade chicken stock instead of beef stock, make sure the chicken used to prepare it reached 74°C / 165°F in its thickest part.