Simmer butter, cayenne, brown sugar, paprika, garlic, salt, pepper, and honey for 1–2 minutes. Set aside.
Mix mayo, sour cream, buttermilk, lemon juice, herbs, and seasonings. Chill.
Combine breadcrumbs with garlic powder, onion powder, oregano, salt, and pepper.
Whisk egg with water in a small bowl.
Dip mozzarella sticks in egg wash, then breadcrumbs. Repeat for a double coat.
Freeze on parchment-lined tray for 30+ minutes.
Fry in 175°C (350°F) oil for 2–3 minutes. Drain on rack.
Brush hot sticks with Nashville sauce. Serve warm with cold ranch dip.