5. Blanch and Peel Tomatoes
Bring a pot of water to a boil. While the water heats, cut a small X in the bottom of the remaining 4 tomatoes.
Once the water boils, add the tomatoes and boil until the skin just begins to peel off around the X, 30 seconds to 1 minute. (The riper the tomato, the shorter the boiling time should be.) Transfer to an ice bath and let cool completely.
Once cool, remove the skin and discard.