1
Heat the oven to 300°F and arrange a rack in the middle.
2
Place the oats, brown sugar, cinnamon, and salt in a large bowl and stir to combine; set aside.
3
Place the honey, oil, and vanilla in a small bowl and stir to combine. Pour over the oat mixture and mix until the oats are thoroughly coated.
4
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.
5
Place the baking sheet on a wire rack and cool the granola to room temperature, stirring occasionally, about 20 minutes. (Note: It will harden as it cools.)
6
Add the fruit and nuts or seeds to the baking sheet and toss to combine.
