-
1
If you are using dried beans, cover 2/3 cups of them with water and soak overnight.
-
2
The next morning, strain and rinse beans.
-
3
Place them in a saucepan and cover them with fresh water, add in the chopped onion.
-
4
Bring to a boil, cover the pot, reduce heat, and simmer for about 1 hour until tender.
-
5
Strain off the water and let the beans cool.
-
6
If using canned, strain and rinse the beans.
-
7
In the bowl of a food processor with a blade attachment, grind the hamburger bun until finely ground into bread crumbs.
-
8
Pour crumbs into a small bowl and set aside.
-
9
In the same food processor bowl, add in the garlic cloves and cilantro.
-
10
Pulse a few times until minced.
-
11
Add in the beans and puree until smooth.
-
12
Transfer to a mixing bowl and stir in the chili powder, lime zest and bread crumbs.
-
13
Season with salt and freshly ground pepper.
-
14
(Taste mixture to make sure seasonings are to your preference before adding in the egg).
-
15
Add in the egg and mix until incorporated.
-
16
Divide mixture into 4 equal pieces and shape into round patties.
-
17
In a grill pan, heat oil over medium-high heat.
-
18
Grill the patties on one side, for about 3-4 minutes until brown.
-
19
Flip over and add cheese.
-
20
Cook for another 3-4 minutes, until cheese has melted.
-
21
Serve patties on hamburger buns with your favorite burger toppings.
