Stem ginger recipes?

Not exactly what you asked for, but I use it in many chutney recipes (with cranberries, beets or lemons as the main ingredient).
You can use it volume for volume to replace fresh or crystallized ginger.
Also, if using to replace fresh, you may want to reduce the sugar elsewhere in the recipe.
For baking, I would add it (sparingly) to quick-breads like banana and zucchini, to give a bit of sharpness. Same with apple pie filling.
Hope this helps.