(Panera Bread) Black Bean Soup

INGREDIENTS

• 1 onion, finely chopped
• 2 garlic cloves, minced
• 2 celery ribs, finely chopped
• 1/4 large red bell pepper, finely chopped
• 2 small chicken bouillon cubes
• 1 -1 1/2 cup boiling water
• 2 (15 ounce) cans black beans, undrained
• 1/2 teaspoon salt
• 1/2 teaspoon cumin
• 1/2 lemon, juice of
• 1 1/2 tablespoons cornstarch