Heat the oven to 300°F and arrange a rack in the middle.

Place the honey, oil, and vanilla in a small bowl and stir to combine.

Place the oats in a large bowl and the pour the honey mixture over the oats and mix until they are thoroughly coated.

Sprinkle the oats with cinnamon and salt and then stir to combine. Make sure the oats are coated evenly.

Spread the mixture in a thin, even layer on a rimmed baking sheet.

Bake for 15 minutes, then stir and continue baking until the granola is very light golden brown, about 5 to 15 minutes more. Cooking them until they are hard just means they are overcooked. They will harden on their own once you pull them out of the oven.

Let the oats cool for about 20 minutes before placing them in an airtight container.