Line a half sheet pan (approx 17”x12”) with parchment paper, and set aside. Preheat the oven to 300F. In a large mixing bowl, combine the oats, chia seeds, cinnamon and sea salt. Mix well.
In a separate smaller bowl, combine the sugar, syrup, oil, and vanilla. Throughly mix until well combined. Pour wet ingredients onto the dry ingredients. Stir with a spoon until all the oats are coated in the wet mixture.
Pour onto the prepared baking sheet and smooth it out as well as you can. Using a large spatula or flat kitchen tool, smack it really well until it forms a thin even layer. It should over the entirety of your baking sheet.
Bake for 23-25 minutes until golden, and crisp. NO flipping or mixing necessary!
Allow to cool on pan for an additional 25 minutes before breaking it up and storing it.
—Break up the large pan of granola by snapping the pieces into smaller pieces, as large or small as desired.