In a large zip-top bag, add the buttermilk, 1 tablespoon gochujang, and whisk to incorporate. Add the chicken, push out the air, seal well, and move the contents around to make sure each piece is coated well. Place in the refrigerator for 2 hours and up to 8, turning the bag occasionally to evenly distribute the marinade.
When you're ready to cook the chicken, drain the marinated pieces throughly in a colander. Combine the cornstarch and salt in a large bowl. Add the chicken and toss to coat, set aside.
Heat 2-inches of oil in a heavy bottomed pan to 320 degrees F. Working in 2-3 batches, shake the excess cornstarch mixture from the chicken and carefully add one piece at a time. Cook for 6 minutes. Using a spider or slotted spoon, remove the chicken and allow to drain on a cooling rack or a plate lined with a paper towel. Be sure to bring the oil back up to 320 degrees F before each new batch and monitor the temp as the wings cook.
For the 2nd fry, increase the heat to 375 degrees F. Fry the wings again, until golden brown, about 2-3 minutes. Transfer the wings to a cooling rack and allow to drain again.
Reheat the sauce over medium-low heat and add the chicken. Just before serving toss to evenly coat. Garnish with sesame seeds and chopped scallion and serve immediately so they stay crispy. Enjoy!
Notes
*Gochujang - this Korean chili paste has a robust and full-bodied, umami flavor. I use 'level 3' on the spiciness scale, which gives you some pretty spicy chicken - feel free to buy gochujang with a lower heat level if you like.
Nutrition Information
Serving size: 3 - 4
Recipe by at https://hapanom.com/korean-fried-chicken/