Black treacle seems to be what they call molasses here in England. At least I can't tell the difference, but maybe someone else knows about this?
Anyhow, my real question is this: I'd just made the gingerbread cake from the Silver Palate book last week and was putting away the tin of Lyle's Black Treacle when I noticed that on the lid of the tin, right under the expiration date, it said "Discard Upon Expiry."
I checked a few other items in my cupboard, including the can of Lyle's Golden Syrup, and didn't find this ominous instruction on any of them. So what do you think is going on? Is there something about molasses/black treacle that I don't know? Does it do something bad when it gets old?
I can't say I'm too worried; the cake turned out great even though the treacle was, in fact, a couple of months out of date! But I did toss the rest of the can, and bought a new one anyhow.