potatoes, boiled, cut into fine little cubes • mushrooms • crayfish tails, ready cooked • olives pitted, left whole or halved • defrosted, small mixed vegetables from one bag (peas, carrots, sweetcorn etc) • best bought or homemade mayonnaise • small pickled gherkin, chopped very finely • small onion, chopped very finely • vegetable seasoning like Aromat or 1/2 a stock cube • cayenne pepper • chilli powder • sprigs of flat leaf parsley, finely chopped •