Add your olive oil into your pot on medium heat. Add the chicken and cook until all pieces are not quite cooked through but cooked on the outside
Use a spatula or slotted spoon, remove the chicken and set aside leaving the juice/oil in the pot
Add the onions and fry for about 5 minutes. Add the garlic and chorizo and fry for a further 5 minutes or so stirring regularly until the onions have softened
Add the rice and fry for a couple of minutes to allow the grains to be coated with all the flavoured oil within the pan
Add the chicken back into the pot before adding the tinned tomatoes. Stir to ensure it is well mixed
Add water and stir (If you don't want your rice to be very soft then just follow the side of the paella rice packet for volume of water to use)
Add pimenton (if using) and stir for a couple of minutes
Add the seafood and remaining ingredients except the prawns and stir
Once everything is added, arrange your prawns on top in a pattern (or just add the prawns in the previous step if you wish)
Lid on and move onto the following steps.