Can't find buckwheat honey. What honey would be similar?

As creamtea wrote, buckwheat honey has a unique flavor that's hard to replicate. This recipe will work fine with any kind of honey, but in order to get some of that rich, earthy taste I'd maybe use half honey and half blackstrap molasses if you can't find the buckwheat variety.

Buckwheat honey has a pretty strong, earthy taste kind of like buckwheat itself. I would probably go with one of the darker honeys if you have a selection where you are. Maybe serve kasha (plain or with butterfly noodles) on the side to make up that flavor.