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Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake

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.

Marcus Stone
Marcus Stone
Prep: 25 minutes
Cook: 37 minutes
6
medium
breakfast
southern-brunchcast-ironsweet-potatobiscuits-and-gravy

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Timeline

1 hour 2 minutes
0m15m30m45m1h
Steam Sweet Potatoes
Brown Country Sausage
Sauté Aromatics & Roux
Finish Skillet Gravy
Mix Biscuit Dough
Portion Biscuits onto Gravy
Bake in Cast Iron
Make Sorghum Butter Glaze
Glaze, Rest & Serve

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. 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. 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. 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. 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. 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. 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. 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. 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. 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.

Frequently Asked Questions

How long does Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake take to make?

Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake takes about 1 hour 2 minutes total. That includes 25 minutes of prep and 37 minutes of cooking.

How many servings does this recipe make?

This recipe makes 6 servings.

What skill level is needed for Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake?

This recipe is rated medium — it's intermediate, requiring some cooking experience.

What ingredients do I need for Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake?

The main ingredients are: sweet potatoes, all-purpose flour, baking powder, baking soda, granulated sugar, kosher salt, freshly cracked black pepper, unsalted butter, cold buttermilk, bulk country breakfast sausage, shallots, garlic, fresh sage, fresh thyme leaves, whole milk, heavy cream, Worcestershire sauce, sorghum syrup, flaky sea salt, butter.

What type of meal is Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake?

Cast-Iron Sweet Potato Biscuit & Country Sausage Gravy Bake is categorized as: breakfast.