Add the saffron to the stock and gently simmer for 5 minutes. Adjust the seasoning with salt as needed. Reserve.
In a paella or similar pan over medium heat, cook the chorizo in the olive oil until it begins to brown, 1 to 2 minutes. Add the onions and continue to cook over medium heat until tender and translucent, 2 to 3 minutes. Add the garlic and sweat until