This sounds absolutely devine!

http://www.kitchenriffs.com/2020/08/the-bramble-cocktail.html#more

It was kinda funny because I just sent some information yesterday to a friend of mine who is anemic - - and blackberries and lemons are two of the MAJOR things that will help people with anemia.  Of course, they use blackberry liqueur in this recipe but smashed up fresh blackberries would be delightful in this drink, too.  Even without the gin, this sounds like a great summertime drink!