1 and a half pounds of flank steak, sliced into strips.

Kosher salt and freshly ground black pepper.

One large red bell pepper, cut into slices.

One large green bell pepper, sliced.

One medium white onion, thinly sliced.

1 piece of garlic (about 2 inches), cut into quarters.

Two garlic cloves, peeled and crushed.

1 cup of beef stock, preferably low-sodium.

1/3 cup of soy sauce, preferably low-sodium.

1/4 cup of brown sugar.

3 tablespoons of rice wine vinegar.

3 tablespoons of sesame oil.

Optional: 2 tablespoons of cornstarch.

Cooked rice, for serving.

Sliced scallions, for garnish.

White sesame seeds, for garnish.

Directions:

Step 1