Sausage butties for me, which is why they're my staple food when out cycling - I eat one every hour or so, with the occasional Mars or Snickers in between.
One thing I can't do is keep up with the volume of high-carb stuff that folks are supposed to need when out on a ride. When I did a 100m earlier this year, I calculated roughly how many kcals I'd need and carried about that amount in oaty and sugary stuff (together with a pack of sausage butties). But I ate less than half of it during the ride - I just couldn't force it all down.
And that reinforces my old conviction that I should just eat what I like, little and often.