Authentic Gazpacho

Name: Authentic Gazpacho
Prep time: 15 min
Total time: 15 min
Cuisine: Spanish
Ingredients: 2 pounds ripe Roma tomatoes (halved and cored*); 1 small (1/2 lb) cucumber (peeled and seeded*); 1 medium green bell pepper (cored); 1/2 small red onion (peeled); 2 small garlic cloves (or 1 large clove) (peeled); 3 tablespoons olive oil; 2 tablespoons sherry vinegar; 1 teaspoon fine sea salt; 1/2 teaspoon freshly-cracked black pepper; 1/2 teaspoon ground cumin; 1 thick slice of white bread (soaked, crusts removed*); optional garnishes: homemade croutons