It took me a while to attempt it myself, but now that I have, there is No Going Back. Fortunately (as the internet and most likely you have already realized), it's really pretty easy and tastes about a thousand times better than much of the stuff on the market.
Technically, the word I wrote down at the top of this recipe is "granaloa," which says something about the hour and/or mindset I was in at the time of recording. I found it on the internet somewhere I am unable to recall (apologies to the since-forgotten blogger), and have adapted it as I like. Have fun!