Watermelon Gazpacho

Bahan-bahan (4 porsi)

• 1.5 pounds cubed fresh watermelon
• 3 large roma tomatoes, halved and cored*
• 1 small (1/2 pound) cucumber, peeled and seeded
• 1 medium red bell pepper, cored
• 1/2 small red onion, peeled
• 2 small garlic cloves, peeled
• 1/3 cup packed fresh mint leaves
• 3 tablespoons olive oil
• 3 tablespoons sherry vinegar
• 1 teaspoon fine sea salt
• 1/2 teaspoon freshly-cracked black pepper
• 1/4 teaspoon ground cumin
• 1 thick slice of white bread, soaked**, crusts removed
• optional garnishes: homemade croutons, chopped fresh mint, a drizzle of olive oil, and/or any leftover chopped gazpacho ingredients