Start by slicing the lemons in half and juicing them. I used a manual juicer and squeezed them over a strainer. Pour all the juice, the zest, and the chopped up lemons into a food processor and mix on high. Pour over strainer into a pitcher. Mix cup of sugar and cup of boiling water and stir until melted through; pour into pitcher. Pour entire carton of nectar into pitcher along with the water.Cover the pitcher and shake well. Voila!