It was in the Members kitchen at High Roding Youth Hostel, way back in the fifties.
The girls had cooked dinner and I wanted some rice pudding for dessert. Ya know, rice, milk, sugar, and raisins.
So I gets me a small pot and a can of milk. Opened the one pound bag of rice and dumped that in. It soon got solid so I added more milk, then I had to get a bigger saucepan, then another saucepan... Finished up with enough to feed the whole Hostel, and then some.