Remove the cooked chicken chunks from the pan. Add the quartered mushrooms to the casserole and fry until golden-brown, adding more low calorie cooking spray if needed
Pour in the Alpro coconut, the rest of the curry ingredients and 4 heaped tablespoons of the paste
Place 200ml (¾ cup) of the sauce into a jug and whisk in the xanthan gum a ¼ of a tsp at a time. You will need to whisk well - and keep whisking!