Muddle frozen blueberries and brown sugar in the bottom of a glass. Add juiced lemon, rum. If you prefer your cocktail strained, go ahead and shake this out over ice before adding to your cocktail glass with remaining club soda, and garnish with lemon rind! If you like a little fruit in your cocktail, try it over the rocks as we have pictured here without straining. Either way, it's delicious and fruity!
We recommend making a big pitcher (multiply this recipe by 4-5). You'll want another one, we promise. ;)