I have a 2 gallon batch of apple cider, in the primary 10 days. It is simply Tree Top apple juice and Lalvin D47 yeast. It had vigorous bubbling for 5 or 6 days, and now has tapered off to none at all. I am ready to bottle it, and want it dry and fizzy. So here is my question: Can I just add 1.5 oz dextrose, bottle and wait for carbonation? Other suggestions?