It sounds like buckwheat honey to me. If you make something with fruit or other flavours, the flavour from the honey will dominate, since dark honeys are very flavourful. If making a melomel I usually prefer to use a lighter honey.
Can you make mead from molasses? Can you make 'something' from molasses.
I live in the heart of sugarcane country, and would like to do something 'local'
It has a mighty strong flavour that would definitely overpower a mead, but I've used a small amount of blackstrap in an ale once with good effect. Maybe use a tiny amount of it in a dark braggot or something.