Preheat oven to 325 degrees. Prep a rimmed cookie sheet with parchment paper or silicone liner.
In a medium bowl, add the sourdough starter, syrup, oil, cinnamon and salt. Stir with a fork until combined.
In a large bowl, add the oats, crisp cereal, nuts, and seeds. Pour wet ingredients over the dry ingredients. Stir to coat.
Pour granola onto the prepped cookie sheet. Spread out in small or big chunks. Bake 25 minutes.
Put the cookie sheet of granola on a cooling rack. Break up your pieces into small or big chunks. Cool completely. Store at room temperature or in fridge in an airtight container.