Gather ingredients and equipment, and preheat oven to 400°F.
Pour sourdough starter into mixing bowl.
Add olive oil, stir into starter.
Add arrowroot flour, salt, and baking soda, mix into starter mixture until well-blended.
Knead dough to form a smooth lump.
Break off a small piece of dough, form it into a roll, place it on the parchment-lined baking sheet.
Form the remaining dough into rolls, spacing them out on your baking sheet.
Bake for 15 minutes at 400°F.
Enjoy warm or let cool.