I've made/am making (currently in t'oven) some flapjacks.
A lengthy search of the cupboards for Golden Syrup proved fruitless...
There was however, a tin of Black Treacle, so I decided to use this, albeit in smaller quanitity to try and lessen its effects.
I attempted to mitigate it further with liberal amounts of jam and caster sugar, however it still tastes a bit suspect.
So, share your tales of culinary stand-ins that fail to impress.