Truly Great Gazpacho Soup

Name: Truly Great Gazpacho Soup
Ingredients: 4 large ripe tomatoes (cored, or one 16oz can of fire roasted tomatoes); 2 large garlic cloves (chopped); 1 medium green bell pepper, chopped; 1 slice bread (crusts removed and torn into small pieces); 1 small cucumber (peeled and seeded and chopped into large chunks); 1 tspn Asian chili sauce (hot); 1/2 cup Spanish onion (finely chopped); 2 tbsp sherry vinegar (or seasoned rice vinegar); 1 tspn kosher salt; 1 1/2 tspn sugar; 1/2 cup olive oil; 1 tbsp cilantro chopped; 1/2 cup sour cream; 1/2 cucumber (sliced and 2 lengths and served on the side)