Supplemental winter feeding is often a necessity in our north country.  Here is a suggested recipe for Winter Sugar Patties.

Here is a link to a video showing one possible process:  Making Sugar Blocks

You can also make a cooked product as an alternative:  Cooked Fondant

In the spring, protein is a necessity to help kick start brood production.  This is a recipe for Protein Patties that you may find useful.