Preheat your oven to 300°F (150°C). Line or grease a 15×18 jelly roll pan.
In a large bowl, mix the rolled oats, melted coconut oil, honey, brown sugar, vanilla extract, salt, cinnamon, coconut, and nuts until well combined. If you see any remaining liquid, consider adding ½ cup more oats.
Evenly spread the granola mixture onto the prepared pan.
Bake the granola for 10 minutes. Take it out, stir, and press it down with a spatula.
Return it to the oven for another 7-10 minutes for chewy granola, or longer if you prefer it crunchier, stirring again if needed.
Remove from the oven and let the granola cool completely. As it cools, it will harden.
Store your homemade granola in an airtight container.