Recently I tried making my own granola. It ended up being quite simple, and I recommend trying it yourself. Dakota and I both find most store-bought granolas way too sweet and full of "extra" flavors. So, my goal was to make granola that was simple, healthy and tasty.
My batch was made using this recipe from Curious Bird blog, with some minor changes. I also doubled the recipe, because we tend to go through cereal pretty quickly. I am storing some of the granola in a mason jar in the freezer where it will keep longer, and the rest has been steadily disappearing from the pantry.
Basically, you just stir together a bunch of oats, nuts and coconut flakes, add a little sugar, spices and oil and bake the whole thing in the oven until its toasty. Then you add raisins or other dried fruit and you're done. Simple as that.
I may experiment a bit more on my next batch, but probably not too much. The point is to have a simple, hearty breakfast cereal for less than it would cost in stores. So, getting too fancy would be beside the point.