Start by pre-heating your oven to 350 degrees and lining your baking sheet with your silicone baking mat or parchment paper.
In a small mixing bowl, combine the sourdough starter, melted coconut oil, maple syrup (pure maple syrup is best), brown sugar, vanilla and cinnamon.
Next in a large mixing bowl, combine all of your dry ingredients. Combine the oats, chopped nuts, and seeds of choice.
Add the wet ingredients to the dry ingredients and mix well until the dry ingredients are well coated.
Now spread the granola mixture evenly on your baking sheet and place in your pre-heated oven (350 degrees) and bake for 20 minutes. After 20 minutes rotate your pan to ensure even baking all around. Bake another 10 minutes but keep an eye during this baking time to make sure it's not getting overcooked and too crispy (this is especially important with the smaller batches).
Once the granola is finished baking, allow it to cool for at least an hour. If you are adding chocolate chips or dried fruit, press it with wax paper into the granola mixture right after you take it out of the oven. This will allow it to melt into the mixture but keep its form.
Once the granola is good and dry, break it into the cluster size you like and store in a glass jar. If stored properly should keep up to a month.