Preheat the oven to 325°F. Line an 11x14" baking tray with parchment paper.
In a small saucepan, heat the butter, coconut oil, and maple syrup over low heat until the butter and coconut oil are melted.
In a large mixing bowl, combine all of the dry ingredients. Stir to incorporate everything well.
Add the melted butter mixture and stir until everything is well coated in the butter mixture.
Dump the granola onto the baking tray and evenly spread it over the tray.
Bake for 15-20 minutes. Stir the granola. Bake for an additional 15 minutes. The granola should be golden brown.
Allow the granola to cool undisturbed in order for yummy granola clumps to form. Ensure the granola is cooled completely before storing in an airtight container.
Note: If you have a convection oven, you can bake the granola with the convection turned on. Bake it for 15 minutes, stir the granola, then bake it for 10 more minutes.