Tofu Walnut Burgers with Irish Stout

1 (8 ounce) package chopped walnuts

½ (1 pound) package firm tofu, drained and crumbled

1 egg

½ cup Irish stout beer (such as Guinness®)

1 tablespoon soy sauce

salt and ground black pepper to taste

Preheat an outdoor grill for medium heat and lightly oil the grate.

Place walnuts in a food processor; process until crushed.

Mix crushed walnuts, tofu, egg, and Irish stout beer in a large bowl until the mixture holds together when lightly squeezed. Stir in soy sauce and season with salt and black pepper.

Form the mixture into six patties.

Grill patties on the prepared grill until browned and set in the middle, 5 to 7 minutes per side.