Start by draining and rinsing the black beans thoroughly under cold water until the water runs clear. Mash the beans until mostly smooth but still slightly chunky.

In a medium skillet, heat 1 tablespoon of oil over medium heat. Add the chopped onions and minced garlic, sauté for 3-4 minutes until the onions are translucent.

Transfer the sautéed onions and garlic into the bowl with the mashed black beans. Add breadcrumbs, egg (or flaxseed meal), cumin, chili powder, salt, pepper, and cilantro. Mix together until cohesive.

Divide the mixture into equal portions and form patties about 1 inch thick. Place the patties on a plate lined with parchment paper.

In the same skillet, heat an additional tablespoon of oil. Cook the patties for about 4-5 minutes on each side until golden brown and crispy.

Assemble the burgers with your favorite toppings and serve warm.