Step 1

Add all of the marinade ingredients to a shallow bowl or freezer bag (whatever you are going to marinate your steak in) and whisk to combine. Add steak and turn to coat. Cover and marinate 30 minutes at room temperature (only an option if using rib eye or top sirloin) or refrigerate up to overnight.

Step 2

When ready to cook, let beef sit at room temperature for 30 minutes. Heat one tablespoon vegetable oil over medium high heat in a large cast iron skillet, wok or stainless steal pan.

Step 3

Working in 4 batches, add meat (grabbing meat with tongs so excess marinade drips off) in a single layer and let sear 1-2 minutes. Flip and cook and addition 1-2 minutes or until browned but barely cooked through then add sesame seeds and stir to combine. Transfer to a plate and cover tightly with foil. Repeat.

Step 4

Garnish with additional sesame seeds and green onions if desired. Serve with additional Gochuchang if you would like it spicier.