(The cake was wonderful !)
Please note - this is not intended as advice to anyone. Just an observation.
I've got to say, if I could take cake when hypo I might have a lot more hypos, sort of accidentally on purpose.
(Though probably not, even cake isn't worth a hypo. )
But I am pretty insulin resistant so a small amount of carb usually gets me out of a hypo... Apart from at night, when I seem to get many hypos after an initial one, so something long acting seems to be the way to go.
But honestly, some people seem to need a lot more carb than others when hypo. You just need to learn your own body and always carry emergency carbohydrate. And personally, I have to make sure that my emergency carb is pretty boring, otherwise it's too tempting to overtreat the hypo.