This is a very simple recipe:
For every one cup of lemon juice add 1.5-2 cups sugar. Stir at room temperature for a couple of days until all sugar has dissolved. Pour into clean dry glass bottles and seal.
Bring out one bottle at a time. Use 1-1.5 cups of lemon syrup in a large pitcher, pour 1L of water and add ice…Enjoy the lemonade!