From your original post, I thought (wrongly, as it happens) that it would be citrus that would be a problem.
There are many recipes for ginger marmalade made with just lemon juice or in combination with lemons, oranges, or a combination.
I don't have any that are converted for the TMX but that should not be a difficult task.
I have tried numerous versions and have endless notes about the various recipes I have tried.
This
Lemon/Ginger version is the best of that variety and should be a cinch to convert.
For a plain ginger using only lemon juice,
I use this one.I've also
made this one - using blood oranges instead of the lemons and limes - ( I used 5 blood oranges but included 2 tablespoons of lemon juice.) The color of this one is incredible - a deep ruby red and quite clear. Looks like stained glass on the plate.
I've owned Helen Witty's "Fancy Pantry" since it was first published in 1986 and her recipe for
Ginger Marmalade was a favorite before the internet allowed the finding of others. It is still produces an excellent result and one that is a favorite in my holiday gift baskets. I have probably been asked for this recipe more than any of the others.
It is a particular favorite with some friends who are life-long tea drinkers - they put a spoonful in their tea cups or mugs, add the tea and don't use sugar - although some do use cream. (one told me that cream works but milk will curdle)
In any event, these should get you started.