These sourdough potato rolls are made with a sourdough starter only. And unlike some sourdough recipes, you can have them done in one day.
In the bowl of a stand mixer, combine all your ingredients. Use the dough hook attachment and start the mixer on low to gently bring the dough together.
Shape your dough into a smooth ball and transfer to a large bowl. Seal it securely with plastic wrap, a plastic bag, aluminum foil, or a lid.
Allow the dough to do its first rise at room temperature for about 8 hours. When the dough has expanded by at least 75%, the first rise is done.