Step 1Break the 4 slices crustless bread into chunks and soak it in water to cover until softened.
Step 2Remove cores from the tomatoes. Cut the tomatoes into chunks and puree in a blender or food processor. Press the juice and pulp through a sieve, discarding the bits of skin and seeds.
Step 3Squeeze the water from the bread and place it in a blender or food processor with the garlic. Blend until smooth.
Step 4Add the tomato pulp, green pepper, cumin and salt. With the blender running, add the oil in a slow stream. Blend in the vinegar and some of the 1 1/2 cups cold water.
Step 5Place the gazpacho in a pitcher and add the remaining water. This makes about 4 1/2 cups gazpacho. Serve immediately or chill until serving time.
Step 6To serve, pour the gazpacho into individual bowls. Place each of the garnishes (finely chopped green pepper, cucumber, onion, tomato and crisp bread) in small bowls. Pass the garnishes with the gazpacho and allow guests to serve themselves.