Drain the oil from the sardines and reserve a few tablespoons, break the fish into pieces into a bowl. Mix a tablespoon of your favourite mayonnaise with a tablespoon of the oil from the sardines in a seperate bowl. Add a teaspoon of ketchup, add a drop of Tabasco or sriracha if you like some heat. Add some sliced red onion, gherkins, chopped parsley and capers to the sardines. Squeeze in some lemon and stir so nicely combined. Serve on toasted sourdough with your
mayonnaise on the side.