Preheat an oven to 450 F. Line a baking sheet with parchment paper and set aside.
Start by patting the wings very dry with paper towels. Transfer them to a bowl and toss with the cornstarch, baking powder, gochugaru, salt, and olive oil until well-coated. Spread in an even layer on the prepared baking sheet.
Bake the wings for 25-30 minutes, flipping the wings once, until golden and crispy.
While the wings cook, combine the glaze ingredients in a small sauce pan and bring to a simmer. Cook for 5 minutes, until slightly thickened. Cool slightly.
Toss the crispy wings in the sauce and return them to the baking sheet. Bake for 5 minutes and serve with the jalapeño ranch.
Jalapeño Ranch
Char a jalapeño over an open flame until blackened. You can also use a kitchen torch, or an oven broiler.
Remove the stem from the jalapeño and combine all the ingredients in a blender. Blend until smooth and season to taste with salt and pepper.