A large plate holding a single frosted sourdough discard cinnamon roll lifted above a 12-inch cast-iron skillet filled with the rest of the baked rolls.
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Best Cast Iron Sourdough Discard Cinnamon Rolls

Byrecipeomg

Best Cast Iron Sourdough Discard Cinnamon Rolls

A Decadent Weekend Baking Project

Baking from scratch is one of the most rewarding ways to spend a morning, especially when it yields a pan of warm, gooey pastries that look and taste like they came from a high-end bakery. These sourdough discard cinnamon rolls are an absolute game-changer, utilizing everyday discard to create a rich, pillowy dough that comes together with surprisingly minimal effort.
Baking them in a heavy 12-inch cast-iron skillet elevates the entire experience. The iron conducts heat evenly, ensuring the rolls bake up tall and fluffy, while allowing the sugary, cinnamon butter around the edges and bottoms to caramelize into an absolute masterpiece.
Finished with a generous layer of luscious homemade cream cheese frosting that melts into every nook and cranny, these cinnamon rolls strike the ultimate balance between sweet, tangy, and rich. Whether you are an experienced sourdough baker or just looking for a delicious way to use up your jar of discard, this recipe is guaranteed to impress your family and friends.

A large plate holding a single frosted sourdough discard cinnamon roll lifted above a 12-inch cast-iron skillet filled with the rest of the baked rolls.

Why You’ll Love This Recipe

  • Cast-Iron Caramelization: Baking in a 12-inch skillet creates the most incredible, gooey caramelized cinnamon butter edges and bottoms.
  • Utilizes Sourdough Discard: A fantastic, practical way to put your jar of sourdough discard to work without waiting for a long rise.
  • Show-Stopping Presentation: Puffed to perfection and smothered in rich frosting, these rolls look exceptionally impressive coming straight out of the iron pan.
  • Fluffy Texture: The dough yields a soft, tender crumb that absorbs the sweet cinnamon filling brilliantly.
  • Homemade Cream Cheese Frosting: A thick, tangy, and sweet frosting that takes these rolls completely over the top.

Ingredients

  • Dough Ingredients:
    • Active or unfed sourdough discard
    • All-purpose flour
    • Warm milk and melted butter
    • Granulated sugar, yeast (if using a hybrid rise method), and a pinch of salt
  • Filling:
    • Softened unsalted butter
    • Dark or light brown sugar
    • Ground cinnamon
  • Cream Cheese Frosting:
    • Cream cheese (softened)
    • Unsalted butter (softened)
    • Powdered sugar
    • A splash of milk or vanilla extract

Step-by-Step Instructions

Step 1: Prep and Arrange in the Skillet

Prepare your sourdough cinnamon roll dough and let it go through its initial rise. Roll the dough out, spread with butter, brown sugar, and cinnamon, roll it tightly into a log, and slice into individual rounds. Generously grease your 12-inch cast-iron skillet with butter, then arrange the sliced rolls evenly across the pan with a little room to expand.
Sliced sourdough cinnamon rolls spaced out inside a greased 12-inch cast-iron skillet before their final rise.

Step 2: The Final Rise

Cover the skillet loosely and let the rolls undergo their second rise until they are puffy, touching one another, and filling out the 12-inch skillet nicely.
Puffed and risen sourdough cinnamon rolls baked to a golden brown inside a 12-inch cast-iron skillet on a stovetop.

Step 3: Bake to Golden Perfection

Bake in a preheated oven until the tops are golden brown and the interior is fully cooked. The butter and brown sugar will bubble up around the sides, creating those signature caramelized edges.
Freshly baked sourdough cinnamon rolls smothered in a thick layer of homemade cream cheese frosting inside a cast-iron skillet.

Step 4: Frost and Serve

While the rolls are still warm, spread your freshly whipped homemade cream cheese frosting generously over the top so it melts into the swirls. Serve warm and enjoy!
A finished batch of frosted sourdough cinnamon rolls resting on a stovetop, ready to be served.

Expert Cooking Tips

  • Grease the Skillet Well: Cast iron is naturally non-stick when seasoned properly, but a generous layer of butter helps encourage that sweet, sticky caramelization on the bottoms of the rolls.
  • Fit the Pan: Adjusting your cut sizes to fit a 12-inch skillet ensures the rolls bake evenly together as a pull-apart loaf without overcrowding.
  • Frost While Warm: Spreading the cream cheese frosting over warm (not boiling hot) rolls allows the frosting to soften and sink slightly into the spirals without completely melting away.

Variations to Try

  • Pecan Caramel Rolls: Scatter chopped pecans and a drizzle of caramel sauce into the bottom of the greased skillet before placing your rolls in to bake.
  • Maple Glaze: Swap the cream cheese frosting for a rich maple-powdered sugar glaze if you prefer a lighter topping.
  • Orange Zest Twist: Add a tablespoon of fresh orange zest into the cinnamon sugar filling for a bright, citrusy punch.

What to Serve With Sourdough Cinnamon Rolls

These rich and decadent cinnamon rolls are a complete standalone treat, but they pair wonderfully with savory breakfast items to balance out the sweetness. Serve them alongside a hot frittata, scrambled eggs, or crispy bacon.
For beverages, they are absolute perfection when paired with a strong cup of dark roast coffee, an iced latte, or a cold glass of milk.

Storage & Reheating

Refrigerator

Store leftover frosted rolls in an airtight container in the refrigerator for up to 4 days.

Freezer

You can freeze baked, unfrosted rolls for up to 2 months. Thaw overnight and warm up before adding fresh frosting.

Reheating

To bring back that fresh-baked texture, microwave individual rolls for 20 to 30 seconds, or warm them in a 350°F oven for 5 minutes.
A large plate holding a single frosted sourdough discard cinnamon roll lifted above a 12-inch cast-iron skillet filled with the rest of the baked rolls.

Sourdough Discard Cinnamon Rolls

Fluffy, scratch-made cinnamon rolls baked in a 12-inch cast-iron skillet using sourdough discard, finished with homemade cream cheese frosting.
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Ingredients Equipment Method Notes

Ingredients
  

  • Sourdough discard
  • All-purpose flour
  • Warm milk & melted butter
  • Granulated sugar & salt
  • Brown sugar & ground cinnamon for filling
  • Cream cheese butter, powdered sugar, and vanilla (for frosting)

Equipment

  • 12-inch cast-iron skillet
  • Rolling pin
  • Mixing bowls
  • Electric hand mixer

Method
 

  1. Mix the dough using sourdough discard, flour, milk, butter, and sugar. Let rise until doubled.
  2. Roll out the dough, spread with butter, brown sugar, and cinnamon. Roll into a log and slice into equal rounds.
  3. Generously butter a 12-inch cast-iron skillet and arrange the rolls inside. Let rise for a second time.
  4. Bake at 350°F (175°C) for 25 minutes until golden brown and caramelized around the edges.
  5. Whip together the cream cheese frosting ingredients and spread over the warm rolls. Serve immediately!

Notes

Skillet Fit: Adjust the thickness of your slices so they fit snugly in a single layer across your 12-inch skillet.

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