For the Dough:
1 cup active sourdough starter, fed & bubbly
2 ½ cups all-purpose flour
⅓ cup lukewarm milk
2 tbsp granulated sugar
2 tbsp melted butter
1 large egg
½ tsp fine sea salt
For Cinnamon-Sugar Coating:
½ cup granulated sugar
1 tbsp ground cinnamon
¼ cup melted butter
For Gooey Caramel Sauce:
½ cup packed brown sugar
¼ cup butter
2 tbsp heavy cream (optional)
Make the Dough:
Combine starter, milk, melted butter, sugar, and egg. Mix in flour and salt until a sticky dough forms. Knead lightly on a floured surface until smooth and elastic.
2. First Rise:
Place dough in a greased bowl, cover, and let rise 6–8 hours (or overnight) until puffy and nearly doubled.
3. Shape Dough Balls:
Deflate dough gently. Roll into ~1-inch balls.
4. Coat & Assemble:
Dip each ball in melted butter, then roll in cinnamon sugar. Arrange in a greased 10-cup Bundt pan.
5. Make Sauce & Second Rise:
Melt butter with brown sugar and cream. Pour over dough balls. Cover and let rest 1–2 hours until slightly puffy.
6. Bake:
Preheat oven to 350°F (175°C). Bake 35–40 minutes until golden and bubbly.
7. Cool & Serve:
Cool 15–20 minutes. Invert onto a plate and serve warm. Optional: drizzle with glaze (½ cup powdered sugar + 1 tbsp milk).