The Simplest Bean Burgers

1. Line a baking sheet with parchment or wax paper. Put the beans, onion, oats, chili powder, and some salt and pepper in a food processor. Let the machine run, stopping to scrape down the sides as needed, until the mixture is thoroughly combined but not puréed, about 1 minute. (If you don’t have a food processor, put everything in a large bowl and use a potato masher.) Let the mixture sit for 5 minutes. You want a moist consistency that will easily form cakes. If it is too wet, add more oats; if it’s too dry, bean-cooking liquid or other liquid. In either case, add the ingredient 1 tablespoon at a time and pulse (or mash) after each addition.
2. Lightly wet your hands and shape the mixture into 4 large or 8 small patties; put them on the baking sheet. Cover and refrigerate for 1 hour or overnight.
3. Put the oil in a large skillet over medium heat. When it’s hot, add the patties. Cook, undisturbed, until brown and crisp on one side, 3 to 8 minutes. Add more oil if the pan looks dry, then turn the burgers over carefully with a spatula and cook until they feel firm and are browned on the other side, another 3 to 5 minutes. Serve hot or warm.

– Recipe from How to Cook Everything Vegetarian: Completely Revised Tenth Anniversary Edition