Place the crayfish tails into a bowl and pour over the lime juice
Add the paprika and stir to combine
Set aside to marinade while you make the masala
for the masala
Heat the oil over a medium temperature in a wok or large pan
Add the onion and fry until soft and just turning golden
Put 3/4 of the ginger into the pan together with the garlic, green chilli and red pepper
Cook until you can smell the ginger then turn up the heat and add the tomatoes
Add the turmeric, cayenne, cinnamon, garam masala, coriander and fructose
Cook until the sauce has thickened and then reduce the temperature
Add the water and stir to combine **
Tip the crayfish into the sauce, together with the lime juice and simmer until cooked through
Add the fresh coriander leaves and left over ginger and serve with naan
Notes
* or 500g king prawns, peeled and deveined ** at this stage you can turn off the heat and leave to use later. Just make sure it is nice and hot before adding your crayfish