Long lasting Best Fuel

For so many months I've been pondering and trying what breakfast I should have to fuel my run? whether is for 5K, 10K or even longer distance. Lots of variety and choices available in the market, but guess what not all is digested without a minor or major hiccups. Lots of ideas also available from diet books to runners' guide books and they are all very helpful, but personal liking is the one that causing difficulties into going to the right choice. I love my fruits for breakfast, they are great with lots of freshness not forgetting the vitamins in them, but they are so quickly ingested and digested, in less than an hour I can't feel the trace of them. It was the time that my friend happily spreading crunchy peanut butter on the multygrain flaxseed bread, simple but for me it didn't look appetising, but well my friend enjoyed it and kept on saying it was like heaven.. only God knows....
I muttered and since the bread was so fresh... hmmm no harm to try, not so sure how thick I should spread the peanut butter, I ended up putting a thick layer of it on a piece of that multygrain bread, hmmm, it was simply delicious especially that I'm not a peanut eater...the crunch added some kick into the soft buttery layer and with the multygrain flaxseed bread, it was just out of this world. It's solidly stay and make your tummy comfortable, well of course you can't eat too full prior your run. I put my thumbs up for this simple sandwich.