hi buddingartist , I'm glad you found the puree , but you could have done without too.
I make the whole recipe ,I make the balls and package them individually (I use saran wrap) and keep them in the freezer. I take 2 each night and put them in the fridge so they're unfrozen for the next day. For Bailey , who was about 70 lbs , I made them tennis ball size. I'm guessing for yours , it would be a bit more than half ... I use the regular cottage cheese.
I'm sure you will get used to giving him his insulin , and he will too. I'm so sorry you're having to go through this