In a large mixing bowl, combine your active sourdough starter, all-purpose flour, granulated sugar, and salt. Pour in the melted butter and mix until the dough starts to come together, creating a shaggy texture.

Transfer the dough to a floured work surface and knead it gently for about 5 minutes until smooth and elastic.

Place your kneaded dough into a greased bowl, cover it, and let it rise at room temperature for about 2 hours.

Once the dough has risen, turn it out onto a lightly floured surface and roll it into a rectangle approximately ½ inch thick.

Generously sprinkle the chocolate chips across the rolled-out dough. Tightly roll the rectangle into a log shape and slice into 2-inch pieces.

Preheat your oven to 375°F (190°C) while the shaped cruffins rest for about 30 minutes. Bake for 20-25 minutes until golden brown.