Black Bean Burger with Salsa Fresca and Avocado Crema | Saveur

Ingredients

• 1⁄3 cup olive oil
• 1 medium yellow onion, finely chopped
• 2 poblano chiles, finely chopped
• 2 tsp. ground cumin
• 2 tsp. paprika
• 1 tsp. ground coriander
• 1 tsp. dried oregano
• 1 chipotle in adobo sauce, finely chopped
• 1⁄2 cup breadcrumbs
• 2 eggs
• 2 (15-oz.) cans, black beans, rinsed, drained, and mashed
• Kosher salt and freshly ground black pepper, to taste
• 1⁄2 cup finely ground cornmeal
• 1⁄2 cup sour cream
• 2 tbsp. freshly squeezed lime juice
• 2 avocados, halved, pitted, and peeled
• Salsa Fresca
• 6 hamburger buns