I’ve already posted a blueberry jam here a while back, but this recipe, adapted from Blue Ribbon Preserves, is also worth your time. And if you like picking your own berries, this is a great way to showcase the result of your efforts. (I picked mine at Fishkill Farms last summer.)
Although I’m usually against the American obsession of putting cinnamon in nearly every dessert, the spice happens to pair very well with blueberries, as long as the dosage remains very subtle: you should barely be able to taste that something’s been added.
The same applies to the amount of vodka. We’re not making blueberry liqueur; the goal is just to make the end result taste more complex, without being able to taste the alcohol.