Last night, I had a Crispin "Lansdowne" cider. It's their "artisinal" cider using molasses and Irish stout yeast. It had WAY more molasses flavor than this recipe does. Too much for my taste. I dramatically prefer this recipe. It's much more balanced.
While blackstrap molasses is feed quality, so are a lot of other brewing ingredients. Fact is that blackstrap is the most flavorful form of molasses, coming from the 3rd boil. That said, I generally use the "full flavor" form rather than blackstrap when I want a little less intense flavor.
What I've usually got on hand is the Black Rabbit "Full Flavor". That's my "go to" molasses unless I'm specifically going for stronger or different flavor.
Neither the vanilla nor the tea is directly identifiable in the outcome, but a small test batch where I skipped it, there's something "missing". The vanilla adds a nice "sweet", smooth flavor without adding a sticky sweetness. The tea adds tannins and some more complex, dark flavor. The tannins are often added in other recipes via specific apples or just as powder. I just figure I might as well get some flavor as well.
I'm planning on doing some split batches with a variety of teas. A good starting place is the number of teas specifically intended to work with apple flavors like
these.
It's tea combinations like those that made me think the flavor combination of cider and tea could be good. I'm probably going to also try to amp up the tea a bit and see what that does.
I do think this really needs carbonation to taste "right", myself. I've tasted it still as well and just don't like it as well.
As for the clarity, I fermented in a carboy before putting it into a keg. I primed with corn sugar in the keg because I figure if it's going to sit and age, I might as well carbonate without tying up a CO2 connector at the same time. It sat in the keg for a few months. When I pulled the first drinkable glass off the keg (after the first one which is all yeast/trub), it was pretty much as clear as you see. However, as I started with a "transparent" apple juice, rather than an unfiltered juice, that might be part of the ease in clarifying.
I agree on the Irish ale yeast for this kind of cider. I've since done another similar batch (with maple syrup instead of molasses) and think the Irish ale yeast is a great choice.
Overall, I think this basic approach of 4 gals of juice and 1 gallon of tea with a flavorful sugar addition is a good formula/framework for experimenting around.
For instance, my next batch is going to use "burnt" honey (cooked until it caramelizes) as the flavorful sugar. I'm hopeful.