Preheat your oven to 425°F (220°C). This high temperature will help get the wings crispy.
In a large mixing bowl, toss the chicken wings with baking powder and salt until they are evenly coated.
Line a baking sheet with parchment paper and arrange the wings in a single layer. Bake for about 40-45 minutes, turning halfway through, until golden and crispy.
While the wings are baking, prepare the sauce. In a saucepan over medium heat, combine sesame oil, minced garlic, and minced ginger. Sauté for 1-2 minutes until fragrant.
Stir in sugar, rice vinegar, soy sauce, gochujang, butter, and honey. Let it simmer for about 5 minutes until the sauce thickens slightly.
Once the wings are done baking, transfer them to a large bowl and pour the sauce over them. Toss until well coated.
Transfer the sauced wings to a serving platter and garnish with toasted sesame seeds, chopped green onions, and crushed toasted peanuts. Serve immediately.