Kalbi-Style Braised Beef Cheek Tacos

1 ½ pounds beef cheeks

¼ onion, sliced

2 cloves garlic, chopped

1 (10.75 ounce) can low-sodium chicken broth

¼ cup soy sauce

2 green onions, cut into 2-inch pieces

2 tablespoons white sugar

1 teaspoon sesame oil

2 teaspoons toasted sesame seeds

½ cup kimchi, or to taste

8 (6 inch) flour tortillas

Heat a large pot over medium-high heat. Cook beef cheeks until browned on both sides, about 5 minutes. Stir in onion and garlic; cook and stir until onion begins to soften, about 5 minutes.

Stir chicken broth, soy sauce, green onions, sugar, and sesame oil into the pot. Bring to a boil. Reduce heat to low; simmer until beef cheeks are tender, about 2 hours.

Remove beef cheeks from the pot using a slotted spoon; cut into bite-size pieces. Arrange beef on a dish and sprinkle with sesame seeds.

Place a scoop of beef and some kimchi over each tortilla.