Summer time simple homemade recipe for Mint lemonade

Bring 3 cups of water to a boil. Add 1.5 cups of sugar and wait till it dissolves.
Let the mixture cool.
Squeeze the juice of 6 lemons and add it to the boiled water and mix it well.
Add 3 cups of cold water and mix well.
Add about 10-15 mint leaves and a few slices of lemon into the mixture.
Cool it and serve.