Sourdough Starter: I make a levain for all of my sourdough recipes because it gives more consistent results. If you don’t want to use that method, you can substitute ripe, bubbly, active sourdough starter for the same amount of levain.
Bread Flour: This is a high hydration recipe. If you choose to use a flour with a lower protein content than bread flour (lower than 12.5%), you will want to decrease the water in the recipe.
Olive Oil: Choose an olive oil that is light in flavor and taste. An extra virgin olive oil often has more olive flavor than a light-tasting olive oil, which can transfer over to the sweet focaccia dough.
Find it online: https://www.amgroyal.com/sourdough-cinnamon-roll-focaccia/