If you're peeling only one tomato, rub the blade of a knife firmly against the skin until it wrinkles; then core the tomato and, starting at the edge, pull off the skin. If you're peeling several, follow these simple steps:

1. Core each tomato with a paring knife, removing the stem end and white center.

2. Cut an "X" on the bottom of the tomato, carefully cutting just through the skin.

3. Fill a Dutch oven with water; bring to a boil. Immerse tomatoes for 20 seconds; remove with slotted spoon and plunge into ice water.

4. Slip remaining skin off tomato using a paring knife (skin will be very loose).