Ingredients
1/4 cup Japanese or Korean dark soy sauce
3 tablespoons Granulated sugar
1 tablespoon Vegetable oil, plus more for grilling
1 teaspoon Sesame oil
1 teaspoon Toasted sesame seeds
3 Medium garlic cloves, crushed, peeled, and grated
3 Scallions, root and dark green ends trimmed, and 6-inch stalks minced
2 pounds Marbled sirloin or rib steak, sliced paper thin against the grain