Spicy Black Bean Soup

Ingredients (13)

• 2 tablespoons extra-virgin olive oil
• 2 medium yellow onions, chopped
• 3 celery ribs, finely chopped
• 1 large carrot, peeled and sliced into thin rounds
• 6 garlic cloves, pressed or minced
• 4 1/2 teaspoons ground cumin
• 1/2 teaspoon red pepper flakes (use 1/4 teaspoon if you're sensitive to spice)
• 4 cans (15 ounces each) black beans, rinsed and drained
• 4 cups (32 ounces) low-sodium vegetable broth
• 1/4 cup chopped fresh cilantro (optional)
• 1 to 2 teaspoons sherry vinegar, to taste, or 2 tablespoons fresh lime juice
• Sea salt and freshly ground black pepper, to taste
• Optional garnishes: diced avocado, extra cilantro, thinly sliced radishes, tortilla chips...