Combine two-thirds of the scallions, ginger, and garlic in a medium bowl.
Heat oil in a small saucepan over high until shimmering, about 2 minutes. Pour hot oil over scallion mixture; it will sizzle, turn bright green, and wilt.
Let mixture rest 5 minutes then stir in remaining scallions, soy sauce, vinegar, sesame oil, sesame seeds, pepper, honey and salt.
Let sauce rest 15 minutes; season with additional salt and pepper to taste.