Step 1

Slice the semi-frozen beef into 1/8-inch-thick slices.

Step 2

Put the soy sauce, sesame oil, sesame seeds, garlic, brown sugar, gochujang and green onions in a large bowl and mix together until the sugar is dissolved.

Step 3

Add 1/4 cup water to the mixture, stir well and add the beef. Let it marinate for at least 3 hours or overnight. (Cover and refrigerate if marinating for longer than 2 hours.)

Step 4

Heat a large skillet or grill until hot. Add the oil to the skillet (or brush your grill grates) and cook the beef until just cooked through, turning once.

Step 5

Garnish with sesame seeds.