Heat the oil in a large frying pan over a medium heat.
Add the chorizo slices and prawns, fry for 2-3 minutes until golden.
Add the paprika, peppers, celery, garlic and cook together for 4-5 minutes, stirring occasionally until very lightly browned.
Add the cooked black rice, mix well.
Stir in the hot chilli sauce, herbs, cook for a final 2 minutes.
Season rice with salt, pepper, and little cayenne to taste.
Serve immediately.