To peel a tomato, first use your paring knife to cut out the stem. Then slice a shallow X in the bottom
Using
a slotted spoon, plunge the tomato into boiling water for a few
seconds, then plunge it into a bowl of iced water. This will stop the
tomato from cooking and further loosen the skin.
Remove the cooled tomato and peel away the skin. This same technique can be used for ripe peaches.