01 -
Combine buttermilk and hot sauce in a resealable bag. Add the chicken breasts, ensuring full submersion. Refrigerate and marinate for 4 to 24 hours.
02 -
In a bowl, mix sour cream, blue cheese crumbles, dill, minced garlic, lemon juice, dried chives, onion powder, black pepper, and sea salt until well combined. Cover and refrigerate until ready to assemble.
03 -
In a large bowl, whisk together flour, potato starch, oregano, smoked paprika, sea salt, black pepper, garlic powder, onion powder, and cayenne pepper. Add 2–3 tablespoons of buttermilk marinade and mix with a fork to form small clumps for extra crispiness.
04 -
Remove marinated chicken breasts from the marinade, allowing excess buttermilk to drip off. Dredge the chicken in the breading mixture, coating thoroughly. Set aside on a plate and let rest for 15 minutes.
05 -
Pour 5–7 cm of oil into a heavy skillet or Dutch oven and heat to 175°C. Fry the breaded chicken breasts in batches for 3–4 minutes per side, or until golden brown and cooked through. Transfer to a wire rack to drain.
06 -
Gently whisk melted butter and hot sauce in a bowl until emulsified.
07 -
Dip each fried chicken breast in the buffalo sauce until evenly coated.
08 -
Lightly butter the cut sides of the brioche buns and toast in a skillet over medium heat until golden brown.
09 -
Place a layer of spring mix or lettuce on the bottom bun, add a buffalo chicken breast, and spoon blue cheese sauce over the top. Cap with the top bun and serve immediately.