Being very tasty, it has a delicate berry-like flavor (perhaps leaning towards grape - but not the same). There's something appealing about turning a seldom used weed into a useful product! There are other uses for the shrub too - projects for another time.
The ingredients for 4 cups of jelly are as follows:
2 US qts (~2 L) sorted and cleaned beautyberries
2 US qts (~2 L) water
¼ cup lemon juice
2 lbs (~900 g) sugar
Pectin for 4 cups of jelly (follow the pectin supplier's instruction)
Note: There are enough beautyberries and water in this recipe for two batches of jelly. However, resist the temptation to make it all in one go, as it might gel before you get to can it! Refrigerate the surplus liquid for the time you make the next batch of jelly.