It's important to first note that canned concentrate is not the same as regular lemonade; it is made by cooking down lemon juice and sugar into a thick syrup before canning it.

The base of the slush is made from only three ingredients, and a can of frozen lemonade concentrate does most of the heavy ... to put together—just blueberry preserves and a splash of lemon juice. The ...

In a small bowl, combine blueberry preserves and 1/2 oz. lemon juice. In a blender, blend frozen lemonade, ice, and vodka until smooth. Spoon 1 Tbsp. blueberry mixture into base of each prepared ...