
Whisk vinegar, peach nectar, oil, hot sauce, red pepper flakes, garlic powder, salt, cayenne, and black pepper in a large bowl to combine. Add cabbage and toss until completely coated in dressing. Cover and chill 30 minutes to allow cabbage to soften and flavors to meld together.
Do Ahead: Dressing can be made 1 day ahead. Cover and chill.