Although I like Marmite as much as the next man (which is Nigel, who likes it quite a lot), I still like a bit of marmalade on my toast. Marmalade seems quite expensive here, and since our neighbour has an orange tree, it makes most sense to make it myself.
The oranges are quite sour and really inedible raw, but they make great marmalade.
The first time around I made it rather runny, but after a second boiling up it seems a nice consistency, and tastes just like the real thing....but more orange-y. I usually pay a 1-jar tariff to my neighbour for the oranges - no idea what he does with the marmalade...maybe he even eats it?