First, pat the chicken dry with paper towels so the coating sticks better. Then season with salt and pepper. Dredge each piece in the flour + potato starch mixture until lightly coated.
Heat your oil (about 1½ inches deep) until it reaches ~ 350 °F (175 °C). Fry the chicken in batches so it doesn’t overcrowd the pan. Cook until golden and crisp, about 3–4 minutes per batch. Remove and drain.
While the chicken fries, whisk together mayonnaise, sweet chili sauce, Sriracha, and honey in a bowl. Adjust heat or sweetness to your taste.
Once all pieces are fried, place them into a large bowl. Immediately pour over the sauce and toss until every bite is coated. Sprinkle sliced green onions and sesame seeds on top. Serve right away while it’s still crisp and saucy.