Wash beef and chicken, place in a large pot and season with salt and 2 seasoning cubes.
Add chopped onions, whole scotch bonnet and chilli pepper. Boil until tender.
If the chicken gets tender first, remove, set aside and keep boiling the beef.
Meanwhile, place a dry saucepan or frying pan, over medium heat.
Add vegetable oil, when hot, add flour and stir very well. This is called a roux.
Lower heat to low and cook while stirring all the time, until the colour changes from white to a light brown, 3-5 minutes.
Take off the heat and add tomato paste. Stir and mix well. Set aside.
Thickly slice the large onions and set aside.
When the beef and chicken are tender, add water to the meat stock to make up to 8 cups of liquid then add the remaining seasoning cubes.
Scoop the roux and tomato paste into the sauce. Stir gently, don't mash up the lumps of tomato paste roux, they will dissolve as the sauce cooks.
Cook uncovered till the sauce has thickened.
Taste for salt and pepper and correct seasoning. Remove the whole scotch bonnet.
Add the thickly sliced onions, stir and cook for 2 minutes take off the heat. The onions will cook a bit more with the residual heat.
Serve with white rice and steamed vegetables, pasta, couscous, boiled or roasted Irish potatoes etc.