Add ½ cup of chicken stock to the cockle cooking liquid and reduce for 10 minutes over a medium heat.
Remove the bay leaves and reduce the heat to low and add 250mls of double cream, 2 tbsp of cream cheese and a pinch of sweet paprika. Reduce for 10 minutes whilst stirring. Add a twist of ground pepper to taste. You won't need to add salt as the cockle cooking liquid will add plenty of salt to the sauce. Use the last 50ml of double cream to thin sauce if needed.
Cook the pasta or konjac noodles following the cooking instructions on the packet, then strain and set aside while the sauce is reducing.
Cut the cooked crayfish into chunks and add to the sauce along with the cooked cockles on the top. Cover for 5 minutes to reheat the crayfish (if not just cooked) and cockles.
Remove the cockles and set them aside. Stir the cooked pasta through the sauce and add to a serving plate. Place the cockles around the plate and serve with finely sliced chillis and chives along with a slice of lemon.