In a small saucepan, bring the ingredients for the lavender syrup to a boil. Reduce heat and simmer for about 5 minutes or until the sugar dissolves. Stir as needed to keep the sugar from sticking to the bottom of the pan.
Transfer to a glass jar and let chill in the fridge. Strain out the lavender after 45 minutes and continue to let it chill.
Mix all cocktail ingredients together & stir.