Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake
I can still picture my grandmother standing at her worn laminate counter in Atlanta, flour dusting her apron like powdered sugar, mashing leftover roasted sweet potatoes into whatever dough was at hand. She taught me that waste was a sin and creativity was a virtue. That memory sparked this skillet bake. I wanted to capture the cozy comfort of a Sunday morning at her house, but give it a modern chef's spin. This dish marries tender, orange-hued sweet potato drop biscuits with a rich, sage-flecked country sausage gravy, all bubbling together in a screaming-hot cast-iron skillet. The real magic happens right at the end, when you brush those golden biscuit tops with a warm sorghum-thyme butter glaze that bridges the gap between sweet and savory. It is the ultimate centerpiece for a soul-stirring Southern weekend brunch. My tip? Don't skimp on the black pepper in the gravy, and if you want a little extra funk, a tiny dash of fish sauce in the sausage will deepen that umami flavor in ways your grandmother would secretly applaud.
Featured Recipe
Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake
Golden, tender sweet potato buttermilk drop biscuits bake directly atop a bubbling, sage-flecked country sausage gravy in a screaming-hot cast-iron skillet. Finished with a warm sorghum-thyme butter glaze, this is the ultimate centerpiece for a soul-stirring Southern weekend brunch.
Save a copy to your collection for editing
Timeline
Ingredients
- 1 large sweet potatoes(peeled and cut into 1/2-inch cubes (yields about 1 cup mashed))
- 2 1/4 cups all-purpose flour(divided; unbleached preferred)
- 1 tbsp baking powder
- 1/2 tsp baking soda
- 1 tbsp granulated sugar
- 1 1/2 tsp kosher salt(divided)
- 1 1/4 tsp freshly cracked black pepper(divided; coarse grind)
- 8 tbsp unsalted butter(divided; 6 tbsp frozen and grated for biscuits, 2 tbsp for glaze)
- 3/4 cup cold buttermilk(full-fat preferred)
- 1 lb bulk country breakfast sausage(heritage mild or sage-seasoned pork sausage)
- 2 medium shallots(finely diced)
- 3 cloves garlic(minced)
- 1 tbsp fresh sage(finely chopped)
- 2 tsp fresh thyme leaves(divided)
- 2 cups whole milk(warmed slightly)
- 1/2 cup heavy cream
- 1 tsp Worcestershire sauce
- 2 tbsp sorghum syrup(substitute pure cane syrup or hot honey)
- 1/2 tsp flaky sea salt(such as Maldon, for finishing)
- 8 tbsp butter(Used in Step 5 and Step 8, but only 'unsalted butter' is listed.)
Instructions
- 1
Preheat your oven to 400°F (200°C). Place 1 large sweet potato cubes into a steamer basket set over boiling water, cover, and steam until fork-tender, about 10 minutes. Transfer to a bowl, mash until completely smooth with a fork, and place the bowl in the freezer for 10 minutes to chill thoroughly so it won't melt the biscuit butter later.
10 min
Tip: Chilling the mashed sweet potato is crucial; warm puree will melt your biscuit butter and ruin your tender layers.
- 2
While the sweet potato chills, heat a 12-inch seasoned cast-iron skillet over medium heat. Add 1 lb bulk country breakfast sausage, breaking it apart with a wooden spoon into bite-sized morsels. Brown until cooked through and deeply caramelized around the edges, about 8 minutes. Use a slotted spoon to transfer the cooked sausage to a plate, leaving 2 tablespoons of rendered fat in the skillet (drain off any excess fat beyond that).
8 min
Tip: Let the sausage develop deep golden-brown bits on the bottom of the skillet; that fond creates the foundation for your gravy.
- 3
Return the cast-iron skillet to medium-low heat with the reserved sausage drippings. Add 2 medium shallots, 3 cloves garlic, 1 tbsp finely chopped fresh sage, and 1 tsp fresh thyme leaves. Sauté until the shallots soften and turn translucent, about 3 minutes. Sprinkle in 1/4 cup all-purpose flour, stirring constantly for 2 minutes to cook out the raw flour flavor.
5 min
Tip: Stir the roux constantly with a flat wooden spatula to keep the garlic and shallots from scorching.
- 4
Gradually whisk in 2 cups whole milk and 1/2 cup heavy cream, scraping up all the savory fond from the bottom of the pan. Bring to a gentle simmer and stir continuously until thickened to coat the back of a spoon, about 3 minutes. Stir in the reserved cooked sausage, 1 tsp Worcestershire sauce, 1/2 tsp kosher salt, and 1 tsp freshly cracked black pepper. Remove the skillet from heat.
4 min
Tip: Keep the gravy slightly looser than customary spooning gravy; it will thicken further as it bakes under the biscuits.
- 5
In a large mixing bowl, whisk together 2 cups all-purpose flour, 1 tbsp baking powder, 1/2 tsp baking soda, 1 tbsp granulated sugar, 1 tsp kosher salt, and 1/4 tsp freshly cracked black pepper. Toss in 6 tbsp unsalted butter (frozen and grated) until coated with flour. In a separate measuring cup, whisk the chilled mashed sweet potato into 3/4 cup cold buttermilk until smooth. Pour into the flour mixture and gently fold with a silicone spatula just until a soft, shaggy dough forms. Do not overmix.
6 min
Tip: Handle the dough with a light touch; working it too aggressively activates gluten and makes biscuits tough instead of flaky.
- 6
Using a large spoon or greased 1/4-cup portion scoop, drop 7 to 8 generous mounds of sweet potato dough directly on top of the warm sausage gravy in the cast-iron skillet, arranging one in the center and the rest in a ring around the perimeter, leaving slight gaps for steam to escape.
3 min
Tip: Placing the biscuits on warm gravy creates immediate oven spring, puffing the dough tall and crisp.
- 7
Carefully slide the cast-iron skillet into the middle rack of the preheated 400°F oven. Bake uncovered until the sweet potato biscuits are puffed, crusty, and deep golden-brown, and the sausage gravy is bubbling enthusiastically around the edges, 22 to 25 minutes.
24 min
Tip: A toothpick inserted into the center of a biscuit should come out clean without wet dough.
- 8
While the skillet finishes baking, melt 2 tbsp unsalted butter in a small saucepan over medium-low heat. Stir in 2 tbsp sorghum syrup and the remaining 1 tsp fresh thyme leaves. Simmer for 1 minute until fragrant and glossy, then take off heat.
3 min
Tip: The warm sorghum butter adds an irresistible earthy sweetness that pairs beautifully with the rich peppered sausage.
- 9
Pull the skillet from the oven and set it onto a heatproof trivet. Immediately brush the tops of the hot sweet potato biscuits generously with the warm sorghum-thyme butter. Sprinkle with 1/2 tsp flaky sea salt. Allow the skillet to rest for 5 minutes before spooning deep, saucy portions onto warm brunch plates.
5 min
Tip: Resting for five minutes allows the bubbling gravy to set slightly, so each biscuit portion scoops cleanly.
Chef's Notes
Growing up in Atlanta, my grandmother kept a basket of red Georgia sweet potatoes under the kitchen sink all autumn long. She would fold roasted sweet potato directly into her morning biscuit dough, producing this radiant sunset-orange color and an earthy crumb that had just enough natural sweetness to match salty country ham. In Charleston, I started turning our biscuit breakfast into a one-skillet family-style bake. When the cold butter in these tender drop biscuits meets the radiant heat of cast iron and a bubbling, sage-rich country sausage gravy, you get crusty biscuit bottoms, cloud-soft centers, and rich gravy all in one scoop. If you cannot find sorghum syrup, dark cane syrup or hot honey makes a spectacular stand-in.
Marcus Stone
Heritage recipes with a chef's touch
My grandmother's kitchen in Atlanta is where I learned that food carries history. Every pot of collards, every batch of biscuits, every Sunday roast told stories of resilience, family, and love. I went on to train at the finest restaurants in Charleston and worked my way up through white-tablecloth kitchens. But I always came back to those family recipes—now I cook them with a chef's technique but a grandmother's heart. Because the best food honors where it came from.