Preheat oven to 350° Fahrenheit and line a large baking sheet with parchment paper.

In a large bowl, mix together the peanut butter, melted coconut oil, and maple syrup or honey.

Add in the rolled oats and chopped nuts, then mix to combine.

Transfer the granola mixture to your prepared baking sheet and spread the granola into an even layer across the baking sheet.

Bake the granola for 15 minutes, then remove it from the oven and use a spatula to flip and toss the granola. Put it back in the oven for an additional 5 minutes, then turn off the oven and leave the granola in the turned-off oven for 30 minutes.

Remove granola from the oven and let it cool completely before serving or storing.