Sourdough Discard Cardamom Swirl Buns

Steps

1. 1

   Mix the dough

   • In a stand mixer bowl, combine sourdough discard, warm milk, granulated sugar, salt, ground cardamom, vanilla extract, and softened butter.
   • Add all-purpose flour and mix on medium speed 6–8 minutes until the dough is smooth and elastic.
   • Let the dough rest 10 minutes to fully hydrate; this allows the flour to absorb all the liquid and develops gluten structure.

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   Ready when: Dough is smooth, elastic, and passes the windowpane test (stretch a small piece and it should be translucent without tearing)

   Tip: Don't overwork once flour is fully incorporated; cardamom flavor develops during fermentation, not during mixing

2. 2

   Bulk ferment dough

   • Cover the bowl with plastic wrap and let the dough rise at room temperature for 4 hours until it increases 50–75% in volume and shows small bubbles on the surface.
   • Alternatively, for deeper cardamom flavor and easier handling, ferment overnight in the refrigerator for 8–12 hours (remove from fridge 30 minutes before shaping to take the chill off).

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   Ready when: Dough is noticeably puffy; gently shaking the bowl shows slight wobble; a gentle poke with your finger leaves an indent that springs back slowly

   Tip: Overnight fermentation in the fridge improves flavor and makes the dough easier to shape; it's the baker's secret for superior cardamom buns

3. 3

   Roll into a rectangle

   • Turn the dough out onto a lightly floured surface and gently press to deflate (do not overwork—you want to retain some air).
   • Roll into a 9×12-inch (23×30 cm) rectangle of even thickness, roughly 1/4-inch (6 mm) thick.

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   Ready when: Rectangle is uniform thickness with no holes, tears, or thin spots

   Tip: If the dough resists rolling and springs back, cover it with plastic wrap and let it rest 5 minutes before continuing—the gluten needs time to relax

4. 4

   Fill and roll into buns

   • In a small bowl, combine softened butter, packed brown sugar, ground cardamom, and salt, mixing until the mixture is well combined and spreadable.
   • Spread this filling evenly over the dough rectangle, leaving a 1/4-inch (6 mm) border uncovered along the top edge (this prevents the roll from unraveling).
   • Starting from the long edge closest to you, tightly roll the dough into a log, pressing gently as you go.
   • Press the seam firmly to seal.
   • Using a sharp knife or unflavored dental floss, cut the log into 9 equal pieces, each roughly 1.3 inches (3.3 cm) wide.
   • Arrange the pieces seam-side down in the prepared 9×9-inch baking pan in a 3×3 grid, with the pieces touching snugly but not compressed.

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   Ready when: 9 equal rolls are arranged seam-side down in the pan in a neat grid, snug but not squeezed, and the brown sugar filling is visible in the spiral

   Tip: Use a thin, sharp knife or unflavored dental floss to cut cleanly without squishing the rolls; a dull knife compresses the dough and can cause uneven baking

5. 5

   Final proof and preheatOven 375°F / 190°C

   • Cover the pan loosely with plastic wrap and let the buns rise at room temperature for 1–1.5 hours (or 30 minutes if the dough was chilled overnight) until they are noticeably puffy, have roughly doubled in volume, and are nearly touching each other.
   • About 15 minutes before the buns finish proofing, preheat the oven to 375°F (190°C).

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   Ready when: Buns are visibly puffy and light to the touch; a gentle poke causes the indent to spring back slowly (not immediately, but within a second)

   Tip: Room temperature affects proofing time significantly; cool rooms (under 65°F / 18°C) may need closer to 2–2.5 hours, while warm kitchens may finish in just 1 hour

6. 6

   Bake until goldenOven 375°F / 190°C

   • Place the baking pan on the center oven rack and bake for 20–25 minutes until the tops are deep golden-brown and the edges have turned light caramel.
   • The buns should sound hollow when tapped on the bottom.
   • If a instant-read thermometer is available, the internal temperature at the center should reach 190–195°F (87–90°C).

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   Ready when: Tops are deep golden-brown (not pale or light tan), edges are light caramel, buns sound hollow when tapped on the bottom, internal temp 190–195°F (87–90°C)

   Tip: If the tops brown too quickly before the buns are fully baked, loosely tent with aluminum foil during the last 5 minutes; oven temperatures vary, so watch carefully after 18 minutes

7. 7

   Cool slightly and frost

   • Let the buns cool in the pan for 10 minutes until the pan is cool enough to touch but the buns are still warm.
   • While they cool, beat the softened cream cheese and softened butter together in a mixing bowl until smooth, about 1 minute.
   • Gradually add the powdered sugar and vanilla extract, beating until the frosting is light and fluffy, another 1–2 minutes.
   • Spread the frosting generously over the warm buns, filling the spaces between them.
   • Serve warm, or let cool completely before serving.

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   Ready when: Frosting is light, fluffy, and covers all buns evenly; buns are still warm to the touch but not piping hot

   Tip: Frosting adheres best and sets nicely when applied to warm buns; if frosting is too soft, chill it for 5 minutes; if too stiff, add milk 1 teaspoon at a time until spreadable