Boil tomatoes for 1 minute, plunge in ice water and peel. Put tomatoes, garlic, bread, egg yolk, olive oil into food processor and blend. Add 1 tablespoon of vinegar and slowly add more until the mixture has the consistency of mayonnaise.
Add salt to taste.
Chop up or slice hard boiled egg and ham and sprinkle on top to garnish.Serve cold .