I always start by lining my baking sheet with parchment paper before turning the oven on. I set the oven to 275°F and place a rack right in the center. Getting this ready first saves me a scramble later.
In a large bowl, I combine the oats, chopped pecans, coconut, sunflower seeds, salt, and cinnamon. If I'm adding chocolate chips, this is the step where they go in too. I give it all a quick stir and set it aside.
In my measuring cup, I stir together the melted coconut oil, maple syrup, and vanilla. It looks a little separated at first, and that's completely normal. If the oil starts to solidify, I just warm it briefly to loosen it back up.
I pour the wet mixture over the dry ingredients and mix thoroughly with a spoon or my hands, making sure every oat gets coated. Then I transfer everything to the sheet pan and press it down firmly into one even layer for the best clusters.
I bake the granola at 275°F for about an hour, then rotate the pan, bump the oven up to 300°F, and bake another 20-25 minutes. I keep an eye on it near the end since ovens vary, and I never stir it while baking so the clusters stay intact.
Once it's golden and fragrant, I pull it out and let it cool fully right on the pan. This step is non-negotiable for me, since rushing it means losing those crunchy clusters. Once cool, I break it into pieces and stir in any dried fruit.