250 grams potatoes, boiled, cut into fine little cubes
75 grams mushrooms
125 grams crayfish tails, ready cooked
14 olives pitted, left whole or halved
3 tbsp defrosted, small mixed vegetables from one bag (peas, carrots, sweetcorn etc)
2 tbsp best bought or homemade mayonnaise
1 small pickled gherkin, chopped very finely
1 small onion, chopped very finely
1 vegetable seasoning like Aromat or 1/2 a stock cube
1 pinch cayenne pepper
1 pinch chilli powder
a few sprigs of flat leaf parsley, finely chopped
1 tsp pickling juice from the gherkins (optional)