This tiny jar of concentrated yeast extract is quite the breakfast food. To use Marmite, spread it thinly on toast or sandwich bread. Wait! What do you mean by "thinly?" I mean, practically thin enough to be  a monolayer of molecules, because if you spread it any thicker, it will taste pretty strong. Well, actually, I use a quarter of a teaspoon on each piece of toast, which is buttered first to lubricate the process. And wait, how would one spread it thinly on fresh, untoasted AMERICAN bread without it tearing the fluffy crumb into tiny balls only suitable for feeding the koi? Again, a bit of softened butter, then a schmear of Marmite, a slice of tomato and you have a super tea sandwich. This is often my dinner, when I want something light.