Preheat your oven to 325°F (160°C) and line a large baking sheet with parchment paper.
In a large bowl, combine rolled oats, walnuts, sunflower seeds, coconut flakes, raw cacao powder, and salt.
In a small saucepan (or microwave-safe bowl), melt the coconut oil. Stir in the maple syrup and vanilla extract. Pour this mixture over the dry ingredients and toss until everything is evenly coated.
Spread the granola evenly on the prepared baking sheet. Bake for 25-30 minutes. Let it cool completely before breaking it into clusters.
Let the granola cool completely before transferring it to an airtight container. Store at room temperature for up to 2 weeks.