Blanching is the process of boiling something for a short period of time and then plunging it into an ice bath. The boiling will loosen the tomato skins, and the ice bath will stop the cooking process. Fill a pot with water and bring it to a boil over medium-high heat.  Use a small pot if you're just peeling a few tomatoes, and a larger pot if you have many tomatoes to peel. The blanching method is very effective, and it works well when you have to peel many tomatoes. Fill a bowl halfway with ice, and then fill it the rest of the way with water. Place the ice bath near the stove, so the tomatoes won’t have far to go when you remove them from the boiling water. A small bowl of ice water will do if you're just peeling a few tomatoes. For larger batches of tomatoes, use a larger bowl filled with ice and water.

Summary:
Boil a pot of water. Prepare the ice bath.