Best Black Bean Burger | Try | Umami

Ingredients

• 3 cups cooked black beans (drained and rinsed)
• ⅓ cup grated yellow onion* (about 1/2 medium)
• 2 garlic cloves (minced)
• 2 chipotle peppers from a can of chipotles in adobo (diced, plus 2 tablespoons adobo sauce)
• 1 tablespoon tamari
• 1 tablespoon balsamic vinegar
• 1 teaspoon cumin
• ½ teaspoon sea salt
• ½ teaspoon black pepper
• 1 egg**
• 1 cup panko bread crumbs
• Extra virgin olive oil (for brushing)
• Cooking spray (if grilling)
• Hamburger buns and desired fixings (for serving)