Sweat the onions in oil and butter for 40 minutes with the chopped bone marrow, which is all but obligatory.
Add the rice and cook till translucent. Begin to add stock by the ladle. Stir gently – easy, you know, does it, son. About 20 minutes after the rice has been added put the saffron into a heat-proof jug of some sort and fill the jug with stock. Pour this into the risotto. Don’t le