In a large bowl, stir together the oats, pepitas, almonds, cinnamon and kosher salt.
Heat the butter and syrup in a saucepan over medium heat. Once the butter is melted, remove the pan from the heat and stir in the vanilla extract.
Pour the butter mixture over the oats mixture. Toss well to combine. Spread the mixture out on a large baking sheet (10x15 inch). Bake for 15 minutes, then toss and bake for 10 more.
Remove the granola and let it cool for 15 minutes (don’t touch it!). Stir in the flaked salt, dried blueberries and cherries. Let sit for another 20 to 25 minutes to cool completely. Store at room temperature in a sealed container or bag.