Dilute the tomato paste with enough water to make a thin paste
Heat your frying pan or karahi with the oil in
On a moderate heat add the onion and cook, stirring often, ‘till going golden brown.
Add the garlic/ginger paste and cook for about 30-40 seconds.
Add the green peppers, chillies, and coriander stalks, cook for about 20 seconds.
Turn down the heat on the pan and add the Bhuna Masala and cook for 30 seconds, stirring constantly.
Turn the heat up a little and add the tomato paste, cook until reduced to a thickish paste and the oil is starting to separate.
Add a small ladle of curry base, turn the heat up and let reduce ‘till little craters are forming on the surface. Stir occasionally if sticking to the bottom of the pan.
Now add 2 ladles of base sauce and cook until reduced again.
You can now add the rest of the base sauce and let it reduce to a thick sauce where craters are forming on the surface.
You can now add your pre-cooked chicken or lamb, stir in, and let heat through gently for around 8 minutes.
Add the fresh tomato and a handful of chopped coriander leaf. Heat through for another 5 minutes before serving.