Heat the oil in the pressure cook then add the guinea fowl pieces and brown them all over. Add seasoning when turning.
Put the pieces on a plate when browned. Replace with the onions and, when softened, add the garlic and squash.
Stir for a couple of minutes then add all the other ingredients and return the fowl.
Bring to the boil stirring well then put on the lid and bring up to pressure. Cook for 10 minutes at high pressure (15 mins for medium pressure cookers) then allow to cool by itself.
Scatter some fresh coriander over it and serve with french bread to dip into the gorgeous juice.