Blackberry Lemonade

PREPARATION

Blackberry Syrup
1. Take a pan, add water, sugar, blackberries and stir.
2. Cook, stirring occasionally until mixture comes to a boil. Lower heat to a simmer and cook 5 minutes.
3. Allow mixture to come to room temperature and refrigerate until completely cool. 

Cocktail
1. Pour 6 ounces blackberry syrup, 1 1/2 ounces frozen lemonade concentrate, 5 ounces water in a jug and stir.
2. Add ice in a glass, pour the cocktail mixture in it.
3. Garnish with lemon slice and blackberries.
4. Serve.