Kittencal'S Really Great Old-Fashioned Lemonade - cooking recipe

Ingredients

1 cup fresh lemon juice (juice of 6 lemons)
3/4 cup sugar (or more to taste)
4 cups cold water
1 lemon (sliced into to rounds)
ice cube (lots!)
1 drop yellow food coloring

Preparation

In a large glass pitcher combine the lemon juice and sugar; stir vigorously until the sugar is completely dissolved.
Add in the cold water and food colouring; stir well.
Adjust the sugar to taste.
Add in lots of ice cubes.
Add in the lemon slices and serve.