First make the simply syrup. Put all the ingredients into a medium pot and bring to a boil. Turn the heat down to medium and simmer for at least an hour or until the mixture reduces and starts to thicken up a bit. It doesn't need to be too thick. Set aside to cool.

When you are ready to make a mojito, add the blackberries, rum, lime and mint to a glass and muddle well. You will smell the flavors all mix together.

Next add the blackberry syrup and give it a little stir.

Fill the glass with ice and then to the top with club soda. Stir well, garnish with a lime wedge and a sprig of mint and serve.

TO MAKE A PITCHER

Add the blackberries, lime, rum, and mint to a pitcher and muddle it well.

Add the blackberry syrup and give it a good stir.

When you are ready to have a cocktail, fill a glass with ice, pour 4 oz of the mixture into the glass, top with club soda, garnish with a lime wedge and sprig of mint and serve.