Place the cucumber ribbons, samphire, dill, vinegar, oil and sugar into a large bowl, stir well and leave for ten minutes for the flavours to infuse.
Place the cockles into a pan over a medium heat, add the wine, cover with a lid and leave for 2-3 minutes, or until all the shells have opened.
Discard any that havent opened or have broken shells.
To serve, add the cockles to the salad and mix well.