Boil potatoes and peas separately. Grate the potatoes and the carrots. Cut the gherkins into small cubes. Mix all these ingredients together.

Add salt, pepper and the juice of a lemon to half of the mayonnaise. Pour this sauce over the ingredients and stir together well. Place everything onto a large plate or platter, and shape it as the base of a layer cake, a heart, or as anything you fancy.

Cover it all with a thin layer of mayonnaise. Garnish with the different-coloured sweet pepper cubes.