A future iced bun filled with special self warming custard. Once a fresh bun is squeezed an edible vile/vial inside the techno custard breaks and the custard warming begins.

In a few seconds a warm custard eco bun is created.

One would hope that the warming chemicals taste extra nice!
-- Pat-O-Cake, Nov 24 2009

Fisher & Donaldson Fudge Doughnuts http://www.fisheran...son.com/bfudge.html
If you don't live in Fife or Dundee, look away now. Not self-heating. [pocmloc, Nov 26 2009]

Hmmmm. It's gonna be salty.
-- 2 fries shy of a happy meal, Nov 25 2009


if the bun is vile, then who's going to want it on their plate?
-- neo_, Nov 25 2009


No, I think that the inside of such a bun is likely to be both edible, and vile.
-- pocmloc, Nov 25 2009


We need a special croissant for Thanksgivng. But this may not be it.
-- blissmiss, Nov 25 2009


Sodium acetate would do this and is edible. It even has an E number. However, it's also the flavouring agent in salt and vinegar flavoured crisps.
-- nineteenthly, Nov 25 2009


I was hoping for a controlled combustion of custard powder to heat the bun.
-- Aristotle, Nov 26 2009


I think the bun is meant to be complete at the end of the explosion - I mean heating process, not splattered all over the ceiling.
-- pocmloc, Nov 26 2009


[pocmloc] not all gunpowder uses causes explosions. Maybe dough-enclosed custard powder could be used to create a mortar that shoots these comestibles towards eager customers ...
-- Aristotle, Nov 26 2009


Ah you mean using it as rocket fuel?
-- pocmloc, Nov 26 2009


Maybe the bun could implode. It could begin as a chamber filled with powdered ingredients suspended in pure oxygen, then be compressed and cook itself by the resultant combustion. Some of the ingredients would have to be non-flammable. Talcum powder maybe?
-- nineteenthly, Nov 26 2009


[pocmloc] Yes, involve a bun in a some form of extreme combustion like that it is bound to heat up. Hopefully we could trade destruction for locomotion.

Although my physics does not extend to implosions, [nineteenthly], that does sound spectacular.
-- Aristotle, Nov 26 2009


Well, it's become an idea now.
-- nineteenthly, Nov 26 2009



random, halfbakery