I have bought a few vegan pies from PCC Natural Market. They are sweetened
with juice. I think it is a combination of apple and pineapple. Frankly
the pies were not so great and I want a whole wheat crust which theirs did
not have. Those pies seem to be no longer available. I have a good crust
recipe now that meets my needs. But I don't know how to sweeten the pie
with juice. I used Splenda for this Marion berry pie and the pie is great
although it gave off tons of juice. The pie itself is not overly juicy.

I am just curious though. How would I go about making one only with juice?
The two that they used to sell were apple which was just passable and
strawberry rhubarb which is normally one of my favorite pies but theirs was
just plain sour. The biggest complaint I had about those pies was the crust
though and I've got that part solved.