I suggest adding yeast to help ensure rapid and complete carbonation with less risk of off-flavors. Use the same yeast you used for primary, but a lower amount, maybe half.
Basic process:
1. Use a
priming sugar calculator to determine the amount of sugar you need. The temperature you enter should be the highest it reached since the end of fermention. You can even add maybe 5°F to it to account for the carbonation loss during the aging.
2. Weigh and dissolve the sugar in an equal amount of non-chlorinated water by mixing and heating it.
3. Sanitize the bottles and bottling gear (not the caps).
4. Put the sugar solution in the bottling bucket.
5. Gently rack the cider onto the sugar, creating a whirlpool to help it mix.
6. Add rehydrated yeast while it is transferring.
7. Use a bottling wand to fill bottles.
8. Crimp cap.
9. Turn the bottles upside down to wet the caps (they are oxygen-absorbing, right?) This activates the O2-absorption.
10. Let the bottles sit above 70°F while carbonating. If you're in a hurry, rouse the yeast in the bottles several times a day for a few days. They should carbonate very rapidly this way.
I thought you're been at this for a while, you haven't bottled before?
Cheers