Once the dough has doubled in size, flour your work surface. Remove the dough from the bowl, and with a rolling pin, shape the dough into a large rectangle (12in x 18in).
Spread the butter over the entire surface of the apple cider sourdough cinnamon roll dough.
85 grams unsalted butter, room temperature
In a small bowl, stir together the brown sugar, ground cinnamon, nutmeg, all spice and pinch of salt.
220 grams brown sugar, 6 grams ground cinnamon, 1 grams nutmeg, dash of allspice, pinch of salt
Sprinkle the cinnamon sugar mixture on top of the butter to the edges of the apple cinnamon rolls. Next, evenly distribute the apple pieces on top of the cinnamon sugar.
Starting at the long side closest to you, roll up the homemade cinnamon rolls into a long snake. Cut off the uneven edges, then divide into 16 equal pieces with unflavored dental floss, string, or a sharp knife.
Spray a rimmed baking sheet with nonstick spray and line with parchment paper. Place the Sourdough Apple Cider Cinnamon Rolls on the baking pan in 4 rows of 4, about 1-2 inches apart. Cover with a plastic cover or damp towel and let rise for a second time until they have noticeably grown and look puffy.In my 70 degree F kitchen, this took about 2-4 hrs.