In a large bowl place the scooped avocado pulp
and lime juice, toss
to coat. Drain, and reserve the lime juice, after all of the avocados
have been coated. Using a potato masher add the salt, cumin, and
cayenne and mash. Then, fold in the onions, tomatoes, cilantro, and
garlic. Add 1 tablespoon of the reserved lime juice. Let sit at room
temperature for 1 hour and then serve.