I made a sweet cider this year sort of on purpose and sort of on accident. What worked for me was cold fermentation around 55 F for a couple months, then when gravity hit ~1.015, I hit with gelatin, then kept refrigerated. Result is crystal clear and quite sweet, with no nutrient additions, pectinase, sorbate or sulfite used at all. Gelatin and patience are your friends.
It's actually too sweet for my taste, so next time I'll aim closer to 1.008 or so. I'm blending in the glass with another batch that turned out very tart and very dry though so it's all good. I always make 4 or 5 batches and blend. Blending is another friend.
Cheers!
P.S. Yeast? Cote des Blancs is the best friggin cider yeast on earth. I've experimented with many and it always turns out the best, hands down.