Pour the buttermilk into a big bowl and add the chicken wings.
Toss to coat well, then let them soak in the fridge for at least an hour.
Crush your potato chips into coarse crumbs, either with a food processor or just a bag and rolling pin.
In a large bowl, mix flour, crushed chips, cornmeal, garlic powder, cayenne, black pepper, salt, and baking powder.
Pull the chicken from the buttermilk and let the extra drip off.
Dredge each piece in your dry mix so every side gets totally coated.
Heat about 2 inches of oil in a deep cast iron skillet or heavy-bottomed pot.
Aim for 350°F—if you’ve got a thermometer, use it!
Work in batches and gently lower the chicken pieces into the hot oil.
Fry about 8 to 10 minutes, turning halfway, until golden brown and crispy.
Use tongs to pull out the chicken and let it drain on a wire rack over a baking sheet.
Serve it piping hot!