It's whatever you prefer! And depending on your preference of salsa texture, there are two ways you can make this recipe: 1. If you prefer a thinner salsa, add the tomatoes WITH all of the rest of the ingredients and pulse together. You can even blend for 10-15 seconds if you like it really smooth. 2. Adding the tomatoes after the initial pulsing will give a thicker, chunkier salsa. Only pulse a few times to keep ingredients more intact.