Preheat your oven to 350°F (175°C) and line a large baking sheet with parchment paper.
In a large mixing bowl, combine the rolled oats, chopped pecans, almond slices, and shredded coconut.
In a separate bowl, whisk together the maple syrup, melted coconut oil, vanilla extract, salt, and cinnamon until thoroughly combined.
Pour the wet mixture over the dry ingredients and stir until everything is evenly coated.
Transfer the mixture onto the prepared baking sheet, spreading it out evenly. Press down with the back of a spatula to form a compact layer.
Bake in the preheated oven for 20-25 minutes, or until golden brown. Halfway through, stir the granola once to promote even cooking but try to keep the clusters intact.
Once baked, remove from the oven and let it cool completely on the baking sheet. It will harden as it cools, forming clusters.
If desired, fold in dried cranberries or raisins once the granola is cooled.
Once fully cooled, break the granola into clusters and store in an airtight container.