I like doughnuts ! AT Imperial I arrange days where I give out doughtnuts to hungry postgraduates. They are suprisingly hard to make though, as you boil them before deep-frying them (it is the same with bagels, look them up).
A doughnut is actually a special shape we study in physics called a ‘torus’ or a 3D ring. Lots of tricky maths problems are about trying to figure out the volumes of a torus.