Heat 80 millilitres curry broth in a frying pan or curry pan over a medium heat. Once the sauce begins to sizzle, add 1 teaspoon garlic ginger paste, 1 teaspoon tomato puree, 1/4 teaspoon mild red chilli powder, 1 teaspoon dried fenugreek leaves (methi), pinch sea salt, 1 small handful fresh coriander leaves, finely chopped, finely chopped and another 80 millilitres curry broth. Mix well and simmer for 2 minutes.