Rhubarb lemonade with cinnamon

2000 gram rhubarb stalks
juice of 1 lemon
600 ml water
2 cinnamon sticks
500 ml sugar/1000 ml rhubarb juice

Chop the rhubarb finely and add to a big pot with lemon juice, water and cinnamon sticks. Bring to a boil and let simmer covered until the rhubarb is very soft. Strain with cheesecloth or a kitchen towel, make sure to get all the juice out of it. Add sugar and let come to a boil, stirring all the time. Pour the lemonade into bottles. The lemonade will have to be cut with water, try it out to see how much you need!