Preheat oven to 300°F;. In large bowl, combine oats, almond flour, ground cinnamon, and kosher salt. Toss to combine. Add the oil. Stir with a wooden spoon to coat.
In a small bowl, combine maple syrup and brown sugar. Pour over oat mixture. Stir to coat thoroughly.
Divide granola evenly between two large baking sheets. Bake until golden brown, tossing every ten minutes on the baking sheet.
Allow granola to cool. Transfer to a large bowl and stir in raisins.