Fritas Cubanas (Cuban Hamburgers)

2 yellow onions, quartered

2 (4 ounce) links chorizo sausage, casings removed

1 green bell pepper, quartered and seeded

6 cloves clove garlic

1 pound lean ground beef

1 pound ground pork

1 cup Italian-style bread crumbs

2 eggs, beaten

2 tablespoons ketchup

1 dash ground cumin

sea salt to taste

freshly ground black pepper

1 tablespoon vegetable oil, or as needed

12 hamburger buns, split

1 (9 ounce) can shoestring potatoes (such as Pik-Nik®)

Place yellow onions, chorizo, green bell pepper, and garlic in a food processor; pulse until minced.

Transfer onion mixture to a large bowl. Add ground beef, ground pork, bread crumbs, eggs, ketchup, cumin, salt, and black pepper; mix with your hands until well-blended.

Form mixture into 12 patties.

Heat oil in a large skillet over medium heat. Cook patties in batches until browned and medium well done, about 5 minutes per side.

Serve cooked patties on hamburger buns topped with shoestring potatoes.