I made myself a batch of homemade granola! I remember I made this when I was a kid, so I sorta remember the recipe. Here is how I did it:
Put some rolled oats into a bowl. Add a splash of oil (I used avocado oil) and also add some water. Stir, and also add a handful of nuts and pour in some sesame seeds. Mix very well. Put in a baking pan or cast iron fry pan. Now, bake at high heat, stirring occasionally, until done.
You can, of course, add cinnamon or other flavoring, or honey, or raisins. My concern is that the raisins could burn, or caramelize, so maybe you could add them later. I believe this could take up to 1/2 hour to cook properly.