Fresh or frozen (canned has a lot of sugar). Simmer them slowly in their own juices. The juice is important. Do not add water.
There are very few blue/red colored foods. There is an old tale about king Aurthur traveling deep into the woods. He came across an old man sitting on his porch. The man was crying and in great anguish. Aurthur asked him what his problem was, and the man was upset because he accidentally dropped his grandfather while helping him out of bed. Arthur was, of course, confused. What was the secret of his longevity? According to the old man, it was the elderberries growing through out the forest.
Elderberries, like blue berries, also have that blue/red colored juice.
We have blackberry bushes where we live. We didn’t get many this year. Had a late snow and a cool, wet summer. We live in AZ, so we’re not complaining.
In summers past, we had so many blackberries we ran out of things to do with them. Blackberries probably have similar properties due to their color.
We’ve got a friend who discovered he’s in the early stages of dementia. His brain is literally shrinking. Doctor said it’s irreversible. I don’t believe that. I’m passing this info on to him. Thank you for posting it!!