do you know if I can re-freeze my frozen breast milk to use in weaning food

Nicola • My husband & I together 16yrs, married 5yr. Poppy born oct 2016, 4months off the pill, diagnosed reflux, breast fed baby
 I have lots of frozen breast milk that will be 5-6 month old When my LO will be 6 months and I start weaning. My question is Can I defrost it and add it to home made weaning puréed and then refreeze it ie a batch of pea & BM in a ice cube tray and I defrost a cube a day??????
If not I could use some on her skin, milk baths. But generally newer frozen milk can I cook with it and re freeze that please?