Korean Fried Chicken

Name: Korean Fried Chicken
Ingredients: Vegetable or canola oil (for frying; about 2 quarts); 2 teaspoons sesame seeds; 1 tablespoon toasted sesame oil; 1 tablespoon finely chopped peeled fresh ginger; 2 scallions, white and green parts separated, thinly sliced; 1/2 cup gochujang (Korean hot pepper paste); 1 tablespoon light brown sugar; 1/2 cup cornstarch; 1/2 cup unbleached all-purpose flour; 2 teaspoons kosher salt; 1 teaspoon baking powder; Freshly ground black pepper; 1/2 cup vodka; 2 pounds boneless, skinless chicken thighs, quartered; A deep-fry thermometer