Marinate chicken in Greek yogurt, pickle juice, garlic powder, paprika, salt, and pepper for 30 minutes (overnight is ideal).
Coat chicken with panko, grated parmesan, garlic, paprika, salt, and pepper.
Spray with oil and air fry at 400°F for 8 minutes per side.
Melt light butter, buffalo sauce, and honey in a pan until smooth and warm, then coat the cooked chicken.
Assemble the sandwich with the toasted keto bun, pickles, high-protein ranch, and crispy chicken.
