This is a copycat of KFC’s Smoky Mountain BBQ Chicken Sandwich — double-dredged fried chicken, a sweet-smoky molasses BBQ glaze, tangy slaw, and dill pickles on a toasted bun. The honest reason to make it at home: you get a noticeably crunchier crust and a sauce you can actually taste, because nothing is sitting under a heat lamp. It takes about an hour start to finish, and the steps are straightforward.
What makes this version work
Two things carry this sandwich. First, the buttermilk brine — it keeps the chicken breast from drying out during frying, which is the number one complaint about homemade fried chicken sandwiches. Don’t rush it; even 30 minutes makes a real difference, and overnight is better. Second, the cornstarch in the dredge. It tightens the crust so it stays crisp for several minutes after you sauce it, which matters because BBQ sauce is wet and will soften a plain flour crust almost immediately. Get those two things right and everything else falls into place.
What can go wrong
- The coating slides off in the oil. This usually means the chicken went straight from the brine into the flour without shaking off the excess liquid. Pat the chicken dry first, then dredge — the coating grips better on a slightly tacky but not soaking-wet surface.
- The crust is pale and greasy. Oil temperature dropped too low, most often because you added too many pieces at once. Fry one or two pieces at a time and let the oil recover between batches. A thermometer is worth using here.
- The chicken is cooked outside but raw inside. Thick chicken breasts need to be pounded or butterflied to an even thickness before brining. Uneven thickness means the thin end overcooks while the thick end is still underdone. Always verify the internal temperature reaches 165°F (74°C) — this is poultry, so there’s no shortcut.
- The slaw makes the bun soggy. Dress the slaw no more than 10 minutes before serving. If you dress it hours ahead, the cabbage weeps and the bun turns to mush by the time you sit down.
- The BBQ sauce burns during frying. Don’t add the sauce to the chicken before it goes in the oil — glaze it after frying, while the chicken is resting on the rack. Sauce in hot oil scorches fast and turns bitter.
Smart swaps
- Liquid smoke: A little goes a long way — start with half the amount called for and taste. Brands vary significantly in intensity, and too much tastes chemical rather than smoky. Skip the egg in the brine mix if you see it listed anywhere — it makes the coating gummy rather than crisp.
- Buttermilk substitute: Mix 1 cup whole milk with 1 tablespoon white vinegar or lemon juice, stir, and let it sit for 5 minutes. It works just as well for tenderizing.
- Brioche bun alternatives: A potato roll is a solid swap — soft enough not to compete with the crust, sturdy enough to hold the sauce without disintegrating. Avoid anything too crusty or thick; it throws off the ratio.
- Air fryer option: Spray the dredged chicken generously with neutral oil on all sides before cooking. Without enough oil, the crust dries out instead of crisping and can taste chalky.
KFC Smoky Mountain BBQ Chicken Sandwich (Chef’s Copycat)
Ingredients
Buttermilk Brine
- 1 ½ cups whole buttermilk Full-fat for best tenderness
- 1 tbsp hot sauce Louisiana-style recommended
- 1 ½ tsp kosher salt Diamond Crystal; reduce if using Morton
- 1 tsp garlic powder
- 1 tsp smoked paprika Spanish or mild
- 4 pieces boneless, skinless chicken breasts About 5–6 oz each, pounded to 1/2-inch thickness
Quick Tangy Slaw
- 3 cups finely shredded green cabbage Or coleslaw mix
- ⅓ cup mayonnaise Full-fat for best mouthfeel
- 1 tbsp apple cider vinegar
- 1 tsp granulated sugar
- ¼ tsp kosher salt
- ⅛ tsp freshly ground black pepper
Smoky Mountain BBQ Sauce
- 1 tbsp unsalted butter
- ¾ cup ketchup Quality brand with real sugar preferred
- 3 tbsp light brown sugar, packed
- 2 tbsp apple cider vinegar
- 1 tbsp molasses Unsulphured
- 1 tsp Dijon mustard
- 1 tsp Worcestershire sauce
- 1 tsp smoked paprika
- ½ tsp chili powder Mild blend
- ¼ tsp liquid smoke Optional, mesquite or hickory
Seasoned Flour Dredge
- 1 ½ cups all-purpose flour Spoon and level
- ½ cup cornstarch For extra crunch
- 1 tsp baking powder Helps create craggy exterior
- 1 tsp onion powder
- 1 ½ tsp kosher salt
- 1 tsp freshly ground black pepper
- ½ tsp cayenne pepper Adjust to heat preference
- 1 tsp light brown sugar Balances the spice
For Frying & Assembly
- 2 quarts peanut or canola oil High-heat frying oil
- 4 whole soft brioche or potato buns Split
- 2 tbsp unsalted butter For toasting buns
- 16 slices thick-cut dill pickle chips 4–5 per sandwich
Instructions
- Pound and brine the chicken (10 minutes active, 30 minutes inactive): Lightly pound the chicken breasts to an even 1/2-inch thickness for even frying. In a medium bowl, whisk buttermilk, hot sauce, kosher salt, garlic powder, and smoked paprika. Submerge chicken, cover, and refrigerate for 30 minutes (up to overnight for deeper seasoning). You’ll notice the buttermilk clinging to the chicken—this helps the crust adhere.
- Make the quick tangy slaw (10 minutes): In a mixing bowl, combine shredded cabbage, mayonnaise, apple cider vinegar, sugar, kosher salt, and black pepper. Toss until glossy and lightly creamy. Refrigerate to chill and let flavors bloom while you fry.
- Cook the Smoky Mountain BBQ sauce (5–8 minutes): In a small saucepan over medium heat, melt butter, then stir in ketchup, brown sugar, cider vinegar, molasses, Dijon, Worcestershire, smoked paprika, chili powder, and optional liquid smoke. Simmer gently, stirring, until thickened and glossy, 3–5 minutes. Reduce heat to low to keep warm. Aromas should be sweet-smoky with a slight tang.
- Mix the seasoned flour dredge (5 minutes): In a shallow dish, whisk flour, cornstarch, baking powder, onion powder, kosher salt, black pepper, cayenne, and brown sugar until evenly combined.
- Heat the oil (10 minutes): Pour 2 quarts of oil into a heavy Dutch oven or deep skillet to a depth of about 1 1/2 inches. Heat to 350°F (175°C). Set a wire rack over a sheet pan. Optional: Preheat oven to 200°F (95°C) to keep fried chicken warm between batches.
- Double-dredge for maximum crunch (5 minutes + 5 minutes rest): Lift a breast from the brine, letting excess drip. Press into the seasoned flour, shake off excess, dip back into the buttermilk, then return to the flour, packing and scrunching to create shaggy, craggy bits. Rest dredged pieces on the rack for 5 minutes—this hydrates the flour for superior crisping.
- Fry the chicken (8–10 minutes): Carefully lower chicken into 350°F (175°C) oil, placing pieces away from you to avoid splatter. Fry until deep golden brown and an instant-read thermometer inserted in the thickest part reads 165°F (74°C), about 3–5 minutes per side depending on thickness. Maintain oil near 350°F (175°C). Transfer to the rack to drain. Brush both sides lightly with warm BBQ sauce while hot for a glossy, lacquered finish.
- Toast the buns (2 minutes): Spread cut sides of buns with butter. Toast cut-side down in a skillet over medium heat until golden and crisp at the edges, about 1–2 minutes. You should see a uniform blond-gold color and smell nutty butter aromas.
- Assemble the sandwiches (2–3 minutes): Spread a spoonful of BBQ sauce on the bottom bun. Add a fried chicken breast, spoon over more sauce, add 4–5 dill pickle chips, and crown with a generous mound of slaw. Cap with the top bun and secure with a pick if desired. Serve immediately while the chicken is audibly crisp.
Notes
Chef’s Tips
- Marinate longer: For extra juiciness, brine up to 12 hours. Reduce added salt in dredge by 1/4 teaspoon if brining overnight.
- Craggy crust secret: After the first dredge, drizzle 1–2 tablespoons of buttermilk into the flour and toss; the damp bits cling to the chicken creating more texture.
- Heat management: Fry in the 325–350°F (165–175°C) range; if it drops, the crust absorbs oil and softens. Use a clip-on thermometer for consistency.
- Air fryer option: Lightly oil dredged chicken and air fry at 375°F (190°C) for 12–14 minutes, flipping at 8 minutes; brush with BBQ sauce to finish.
- Oven-baked option: Set chicken on a rack over a sheet pan, mist with oil, and bake at 425°F (220°C) for 18–22 minutes to 165°F (74°C), broiling briefly for extra color. Brush with sauce.
- Sauce sweetness: For a sweeter profile, whisk in 1–2 teaspoons honey at the end; for more heat, add a pinch of cayenne.
- Bun choice: Potato buns are sturdy yet soft; brioche adds buttery richness that pairs beautifully with smoke.
Serving Suggestions
Plate on a parchment-lined tray or a warm plate. Let the slaw peek out for a pop of pale green against the brick-red sauce and burnished golden crust. Garnish the plate with extra pickle chips and a ramekin of warm BBQ sauce for dipping. Pair with crisp fries, a simple corn-tomato salad, or creamy mac and cheese. Drinks: sweet iced tea, a citrusy wheat beer, or a bourbon highball.Culinary Context
Smoky Mountain-style barbecue leans sweet and smoky with a gentle tang—think Tennessee pit flavors meeting the crowd-pleasing sauce profiles of the South. This sandwich nods to KFC’s regional release while staying true to homestyle fried chicken technique: buttermilk for tenderness, cornstarch for crunch, and a lacquered sauce for shine.Optional Advanced Instructions
- Make-ahead: Sauce can be made 3 days in advance and refrigerated; rewarm gently. Slaw holds well for 1 day.
- Parallel prep: While the chicken brines, make the sauce and slaw, and mix the dredge. Start heating oil in the final 10 minutes of brining.
- Beginners: If deep frying feels daunting, start with the air fryer or oven method noted above—then graduate to the pot once you’re comfortable monitoring temperature.
Nutrition
FAQ
Can I bread the chicken ahead of time and fry it later?
Yes — dredge the chicken, set it on a wire rack, and refrigerate uncovered for up to 2 hours before frying. The resting time actually helps the coating bond to the surface, so the crust holds together better when it hits the oil.
How do I know when the oil is hot enough without a thermometer?
Drop a small pinch of flour into the oil — if it sizzles steadily and floats, you’re close to the right temperature. That said, a cheap instant-read or clip-on thermometer is the most reliable tool here and takes the guesswork out completely.
Can I use chicken thighs instead of breasts?
Boneless, skinless thighs work well and are more forgiving because the higher fat content keeps them juicy even if you cook them a minute too long. They still need to reach 165°F (74°C) internal temperature — same rule as breasts.
