Clean the fennel bulbs, cut in half and cut across into thin slices. Finely dice the ham. Quarter the apples, remove the core and cut the quarters into thin slices.
Mix the vinegar with salt and pepper. Peel the garlic clove, press it through the press and add. Stir in the olive oil with the whisk.
Arrange the fennel, apples and ham on a flat bowl. Pour the marinade over it. Turn and let steep for about 15 minutes.