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Cast-Iron Blackberry & Sorghum Biscuit Slump

Cast-Iron Blackberry & Sorghum Biscuit Slump

Plump late-summer blackberries simmered with dark sorghum syrup and fresh thyme, crowned with fluffy, golden buttermilk biscuit rounds baked right in a heavy cast-iron skillet. This traditional Southern morning treat bridges sweet fruit and warm, rich pastry with a chef's rustic refinement.

Marcus Stone
Marcus Stone
Prep: 20 minutes
Cook: 35 minutes
6
medium
breakfast
cast-ironblackberriessouthern-heritagebiscuit-baking+1

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Timeline

45 minutes
0m10m20m30m40m45m
Preheat Oven & Skillet
5m
Toss Berry Filling
5m
Whisk Biscuit Dry Mix
Cut Butter into Flour
5m
Simmer Fruit in Skillet
5m
Combine Biscuit Dough
Top Fruit with Dough
Bake Slump in Oven
25m
Rest and Serve
5m

Ingredients

  • 5 cups Fresh blackberries(Rinsed and pat dry; ripe summer berries work best)
  • 1/3 cup Dark sorghum syrup(Brings a earthy, caramel-like sweetness)
  • 1/3 cup Granulated sugar
  • 1 tbsp Fresh lemon juice(Brightens the fruit flavor)
  • 2 tbsp Cornstarch(Helps thicken the rich berry juices)
  • 1 tsp Fresh thyme leaves(Finely chopped; adds a subtle herbal backnote)
  • 1 tsp Pure vanilla extract
  • 3/4 tsp Kosher salt(Divided between filling and biscuit dough)
  • 2 cups All-purpose flour(Unbleached Southern flour preferred)
  • 1 tbsp Baking powder
  • 1/4 tsp Baking soda
  • 1/2 cup Unsalted butter(Cold and cut into 1/2-inch cubes)
  • 3/4 cup Full-fat buttermilk(Cold)
  • 2 tbsp Unsalted butter, melted(For brushing biscuit tops)
  • 1 tbsp Turbinado sugar(For crunch on the biscuit tops)

Instructions

  1. 1

    Preheat your oven to 400°F (200°C). Place a 10-inch or 12-inch heavy cast-iron skillet on the stovetop.

    5 min

    Tip: Prewarming the cast iron ensures even heat distribution when the berries hit the pan.

  2. 2

    In a large bowl, gently combine 5 cups Fresh blackberries, 1/3 cup Dark sorghum syrup, 1/3 cup Granulated sugar, 1 tbsp Fresh lemon juice, 2 tbsp Cornstarch, 1 tsp Fresh thyme leaves, 1 tsp Pure vanilla extract, and 1/4 tsp Kosher salt.

    5 min

    Tip: Toss gently with a rubber spatula so you keep the blackberries whole.

  3. 3

    In a separate mixing bowl, whisk together 2 cups All-purpose flour, 1 tbsp Baking powder, 1/4 tsp Baking soda, and remaining 1/2 tsp Kosher salt.

    3 min

    Tip: Whisking aerates the dry ingredients, giving you lighter biscuits.

  4. 4

    Add 1/2 cup Unsalted butter cubes to the dry flour mixture. Cut the butter into the flour using a pastry cutter or your fingertips until pea-sized bits of butter remain.

    5 min

    Tip: Work quickly so the butter stays cold—those butter bits create steam pockets for flaky layers.

  5. 5

    Transfer the blackberry mixture into the cast-iron skillet over medium heat. Allow it to simmer gently, stirring occasionally, until juices begin releasing.

    5 min

    Tip: Getting the berries warm and bubbling before adding biscuits ensures the fruit cooks evenly beneath the pastry.

  6. 6

    Pour 3/4 cup Full-fat buttermilk into the flour-butter mixture. Stir with a fork just until a tender, shaggy dough comes together.

    3 min

    Tip: Do not overmix; stop as soon as no dry flour pockets remain to avoid tough biscuits.

  7. 7

    Using a large spoon or ice cream scoop, drop 6 to 8 plump biscuit rounds directly onto the warm, bubbling fruit in the skillet. Brush tops with 2 tbsp Unsalted butter, melted and sprinkle with 1 tbsp Turbinado sugar.

    3 min

    Tip: Leave slight spaces between biscuit rounds so hot air circulates and cooks the sides properly.

  8. 8

    Transfer the cast-iron skillet to the oven and bake until the biscuit tops are golden brown and the berry juices bubble thick around the edges.

    25 min

    Tip: If the biscuit tops brown too quickly before 20 minutes, tent loosely with foil.

  9. 9

    Carefully remove the skillet from the oven and let it rest for 5 minutes before serving directly from the pan into shallow bowls.

    5 min

    Tip: Resting allows the jammy fruit sauce to set slightly so it coats the warm biscuits perfectly.

Chef's Notes

Growing up in Atlanta, August meant wild blackberry vines heavy with fruit along the red clay ditch lines behind my grandmother's garden. We'd fill ice cream buckets with warm, sun-ripened berries, stained purple to our elbows. Grandmama called this dish a 'slump' because the tender biscuit tops slumped into the bubbling, jammy fruit as it baked in her worn cast-iron skillet. I've added a splash of dark sorghum syrup for a smoky sweet warmth and a touch of fresh thyme to lift the berries' natural depth. Serve it hot from the skillet with a splash of cold heavy cream.

Frequently Asked Questions

How long does Cast-Iron Blackberry & Sorghum Biscuit Slump take to make?

Cast-Iron Blackberry & Sorghum Biscuit Slump takes about 55 minutes total. That includes 20 minutes of prep and 35 minutes of cooking.

How many servings does this recipe make?

This recipe makes 6 servings.

What skill level is needed for Cast-Iron Blackberry & Sorghum Biscuit Slump?

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

What ingredients do I need for Cast-Iron Blackberry & Sorghum Biscuit Slump?

The main ingredients are: Fresh blackberries, Dark sorghum syrup, Granulated sugar, Fresh lemon juice, Cornstarch, Fresh thyme leaves, Pure vanilla extract, Kosher salt, All-purpose flour, Baking powder, Baking soda, Unsalted butter, Full-fat buttermilk, Unsalted butter, melted, Turbinado sugar.

What type of meal is Cast-Iron Blackberry & Sorghum Biscuit Slump?

Cast-Iron Blackberry & Sorghum Biscuit Slump is categorized as: breakfast.