Put the tomatoes into a blender and pure. Add the cilantro, onion, jalapeno, coriander, cumin, lime juice, salt, pepper and Sazon, if using, and pure until smooth. Add water, 2 or 3 tablespoons at a time, until the desired consistency is reached. Taste and adjust the seasoning with salt, pepper, and lime juice if necessary.
Serve the gazpacho in chilled bowls, garnished with tortilla chips, croutons or chicharrones, if you like.
(To freeze the surface of the soup, holding the canister with gloved hands, carefully pour 1/2 to 1 teaspoon liquid nitrogen directly onto the surface of the gazpacho in each bowl, freezing the top of the soup instantly. Be sure to allow the liquid nitrogen vapor to dissipate completely before serving.)