Dirty South Biscuit Sandwich
A towering buttermilk biscuit loaded with crispy fried chicken, bacon, and smothered in house sausage gravy.
Prep: 30 min · Cook: 40 min · Total: 1 hr 10 min · Serves: 4 · Difficulty: Medium · Rating: 4.9/5 (207 reviews)
INSPIRED BY
Cast Iron Kitchen — North Carolina
Inspired by Cast Iron Kitchen in North Carolina, where the Dirty South biscuit sandwich is a local institution and morning ritual for the serious breakfast crowd.
Story
The first time I made this I tried to do every single component at once and nearly lost my mind, so let me save you the trouble. It's a buttermilk biscuit with fried chicken, bacon, and sausage gravy stacked into one towering sandwich, the kind of breakfast I had once at a place called Cast Iron Kitchen in North Carolina and have been trying to recreate ever since. I made it on a slow Sunday when nobody had anywhere to be. The chicken has to marinate in buttermilk, and longer is genuinely better. I gave it two hours my first attempt and it was fine, but overnight it was noticeably more tender and the cayenne had time to work in. Plan ahead. This is not a spontaneous breakfast unless you marinated the night before. The biscuit lesson I learned the hard way is cold butter, cold buttermilk, and don't overwork the dough. The first batch I made I kneaded it like bread because that's what my hands wanted to do, and they baked up dense and tough instead of flaky. You cut cold butter into the flour, leave pea-sized chunks, add cold buttermilk, and mix just until it barely comes together. The pockets of cold butter steam in the oven and that's what makes the layers. I cook the bacon first and use a tablespoon of the rendered fat to start the sausage gravy, which carries that smoky bacon flavor through the whole thing. Black pepper, aggressive amounts of it. Gravy without enough pepper is just paste. Honest assessment: this is enormous and it is a Sunday project, not a weekday thing, and you will use most of your skillets. My husband ate one and went back to bed, defeated and happy. My 7-year-old ate the chicken and the biscuit and skipped the gravy. My 4-year-old ate the bacon and called it a day. Eat it the moment it's assembled, because the gravy soaks into the biscuit fast and turns the whole thing into a fork situation within about ten minutes. Which, honestly, is also delicious, just stop pretending it's a sandwich at that point and grab a fork.
By Casey
Ingredients
- 4 boneless skinless chicken thighs
- 1 cup buttermilk (for marinade)
- 1 cup all-purpose flour (for dredge)
- 8 strips thick-cut bacon
- 0.5 lb bulk pork breakfast sausage
- 0.25 cup all-purpose flour (for gravy)
- 2 cups whole milk
- 2 cups all-purpose flour (for biscuits)
- 1 tbsp baking powder (for biscuits)
- 6 tbsp cold unsalted butter, cubed
- 0.75 cup buttermilk, cold (for biscuits)
- 1 tsp garlic powder (for dredge)
- 1 tsp cayenne pepper
- 2 quarts neutral oil for frying
Instructions
- Marinate the chicken: submerge chicken thighs in buttermilk seasoned with salt, pepper, and a pinch of cayenne. Refrigerate at least 2 hours, ideally overnight.
- Make the biscuits: whisk flour, baking powder, and salt. Cut in cold butter until crumbly with pea-sized chunks. Add cold buttermilk and mix just until dough comes together. Pat to 1-inch, fold twice, cut into rounds. Bake at 450°F for 12–14 minutes until golden.
- Cook the bacon in a skillet over medium heat until crispy. Remove and drain on paper towels. Reserve 1 tablespoon of bacon fat for gravy.
- Make the gravy: cook crumbled bulk sausage in the same skillet with reserved bacon fat over medium heat until browned. Sprinkle flour over the sausage and stir to coat, cooking 2 minutes. Slowly whisk in whole milk, about half a cup at a time, whisking constantly. Cook until thick and bubbly, about 5 minutes. Season aggressively with black pepper and salt.
- Fry the chicken: heat oil to 350°F. Remove chicken from buttermilk, shaking off excess. Dredge in flour seasoned with garlic powder, cayenne, salt, and pepper. Fry thighs 6–8 minutes until golden brown and internal temp reaches 165°F. Drain on a wire rack.
- Build the sandwich: split a hot biscuit. Place a fried chicken thigh on the bottom half. Lay 2 strips of bacon on the chicken. Spoon a generous ladle of sausage gravy over everything — let it cascade down the sides. Crown with the biscuit top. Serve immediately before the gravy makes everything deliciously soggy.
Chef Tips
- Overnight buttermilk marinade is the difference between good fried chicken and great fried chicken. The lactic acid tenderizes the meat all the way through.
- Don't let the gravy get too thick before you take it off heat — it continues to thicken as it cools. It should pour like a thick cream sauce, not sit like mashed potatoes.
- Use a thermometer for the oil. Anything below 325°F means pale, greasy chicken. Anything above 375°F means burnt outside, raw inside.
- The biscuit needs to be fresh and hot. You cannot make this sandwich with a biscuit from yesterday. The structural integrity depends on it.
Cook's Notes
- **Biscuit fat tip:** Keep butter ice cold throughout the mixing process. Warm butter melts into the dough rather than creating steam pockets — cold butter is what makes flaky layers.
- **Protein options:** This is a build-your-own format — fried chicken, pulled pork, or sausage patty all work. The biscuit and condiments carry the concept.
- **Make-ahead:** Biscuits are best fresh from the oven. They can be baked 4 hours ahead and warmed in a 300°F oven for 8 minutes before assembling.
- **Storage:** Plain biscuits: 2 days at room temperature in an airtight container. Assembled sandwiches: eat immediately — the biscuit absorbs moisture from fillings quickly.
- **Common mistake:** Over-working the dough. Stir just until the flour disappears, then stop. The more you work it, the tougher the gluten gets and the denser the biscuit.
- **Doneness cue:** Biscuits are done when the tops and bottoms are golden brown and a knife inserted in the side comes out clean with no raw dough.
- **Layering technique:** Pat biscuit dough rather than rolling for fewer gluten strands and more tender biscuits. Fold the dough over itself 3-4 times before the final pat for defined flaky layers.