# Steps:
01 - Whisk together the lemon juice and sugar in a large pitcher until the sugar completely dissolves.
02 - Pour in the cold water and stir thoroughly to combine all ingredients.
03 - Add the chilled heavy cream and whisk until the mixture becomes smooth and uniformly creamy.
04 - Taste the mixture and add additional sugar if more sweetness is desired.
05 - Fill glasses with ice cubes, pour the creamy lemonade over ice, and garnish with lemon slices and mint leaves. Serve immediately.