For the Blackberry Puree: 1-1/2 to 2 cups fresh blackberries, rinsed and drained 1 to 2 tablespoons sugar For the Margarita: ¼ cup sugar 2 lemons (use Meyer lemons if possible) 4 teaspoons blackberry puree 4 ounces prepared lemonade (homemade or store bought) 4 ounces good quality silver tequila Click here for directions