Line baking sheet with parchment paper or silicone mat.
In a large bowl, whisk peanut butter, pepper jelly, rice vinegar, soy sauce, black pepper, sesame oil, garlic.
Whisk mashed potato flakes, olive oil, salt, and black pepper in a large shallow bowl. Add chicken wings and toss to coat.
Place coated wings in a single layer on the prepared baking sheet. Bake in oven for 30 minutes. Remove from oven, turn wings over, and return them to oven. Bake for another 30 minutes.
Transfer chicken wings to the peanut butter jelly mixture, toss to coat.
Return chicken wings to baking sheet and bake in the oven for 5 minutes.