My recipe (adapted from a River cottage recipe)
First make a curry paste by blending the following in a food processor:
1 onion
4 cloves of garlic
thumb sized piece of fresh ginger
1 chilli (optional)
1 tsp dried tumeric
1 tsp garam massala
1 tsp ground cumin
1 tsp ground coriander seeds
the last 2 are best if you use whole seeds and lightly toast them in a dry frying pan before grinding in pestle and mortar.
then in a blender blend a tin of chopped tomatoes and a tin of coconut milk into a “smoothie”.
In a large pan add a couple of tablespoons of oil and fry off the curry paste for a couple of minutes before adding 3-4 diced chicken breasts (large chunks) and continue to fry off for a couple of minutes. Then add enough of the smoothie mixture to cover all the chicken and bring to a simmer. leave to simmer until the sauce reduces and thickens. Remove from the heat and stir through a handful of chopped fresh coriander.