Scaling: Start by adding 350 grams of water to a large bowl or the bowl of a stand mixer. Follow the water with the active sourdough starter and flour. Hold off on other ingredients.
Initial Mix: Mix the water, starter, and flour together using a spoon or a dough hook attachment, if using a stand mixer. Tip: Do not overmix! Once there is only a little bit of dry flour and dough is mostly come together, use a rounded plastic dough scraper to scrape the sides of the bowl and finish mixing the last bits of dry flour into the bread dough. Be sure to check under the dough and the sides of the dough for dry flour.
Autolyse: Cover the bowl of dough with plastic wrap or a cloth and let the dough rest for 20-60 minutes to help the dough strengthen and develop better elasticity.
Final Mix: After the dough autolyse time is complete, add the salt and the 10g* reserved water to the dough. Knead and fold the salt and water into the dough until it is completely incorporated. Let the dough rest for 30 minutes before adding the inclusions during the first stretch and fold.
During the autolyse, prepare the apple cinnamon spice mixture. The size of the apple pieces is a matter of preference. A finer dice will allow them to mix in more evenly. Chunks of apple will create some larger juicy bites in the bread.Personally, I like to cut the apple pieces until they are the size of blueberries, about 1/4-inch squares. Mix the apples, sugar, and spices together in a small bowl.
Add the apple cinnamon mixture to the center of the dough.
Then, take the sides of the dough and pull it up and over the top of the dough. Keep stretching and folding the dough over itself until the apples and spices are evenly incorporated. Recover the dough or transfer to a dough bin.
Suggested step: After 30 minutes, do a second stretch and fold series.