Drain the artichoke hearts and cut in half. Cut basil into fine strips, except for a few leaves for garnishing. Wash and clean the tomatoes and cut them into small cubes.
Season vinegar with salt and pepper, stir in 2 tablespoons of water, add oil and carefully fold in the diced tomatoes and basil strips. Sprinkle the artichoke hearts with the vinaigrette and let it soak through a little.
Serve artichoke hearts garnished with basil leaves.