I noticed recently a bartender having cocktails that include
blood orange on his drinks menu recently, even though they
are out of season. I asked, and he says they use a commercially-
available puree.

Doing some googling, I see there are such products; the ones
I found were frozen.

Has anybody used this product? Is there a particularly good
brand? Do physical stores ever carry it, or must it be
mail ordered?

Thanks,

Steve