I have a glass butter dish identical to that used by my grandparents 40yrs ago. I have always put the butter in the deep part, as they did, and used the shallow one as the lid. Recently a friend laughed at me for having it upside down... is this a social faux pas or is it up to the user ?
I've also got one of those butter dishes and have often wondered which way round was *correct*.... but then I realised that it didn't really matter, it was up to me ! I'd been putting the butter on the shallow dish and covering it up with the deeper bit so it looked nice when on the table without a lid but was a darned sure way of making the complete dish a bit unstable and wobbly...lol
Our glass butter-dish has a picture of a cow etched onto the outside of the shallow part, so, clearly, the manufacturer meant that to be the lid. However, we invariably use it the other way around for the simple reason that it makes it so much easier actually to get at the butter!
I do the same as you and was laughed at by my ex. That's why she's my ex!!
Seriously though, I tried it the "right" way for one pack but it just seemed too top heavy and I reverted back to the usual big bottom. Just seems more practical all round to me.
But then my mum had the same dish and did it that way round so maybe it's just what you know. Bit like should you say scone or scone!
Surely you end up having difficulty getting the butter out of the deep bit. It is easier if it is standing on a shallow dish I would have thought. Incidentally, I have a Lurpak butter disk which has a man on the top, which is the deeper part XX