Squeeze about 4-6 fresh lemons until you have 1 cup of juice, taking care to remove any seeds.

In a large mixing bowl, whisk the freshly squeezed lemon juice with one can of sweetened condensed milk until the mixture is smooth and creamy, about 2-3 minutes.

Gradually pour in 2 cups of cold water, stirring gently after each addition to achieve your desired taste.

Add the zest of one lemon to the mixture, incorporating it thoroughly.

Fill a large pitcher with ice cubes and pour the creamy lemonade mixture over the ice.

Pour the lemonade into chilled glasses, and add fresh mint leaves and a slice of lemon to each drink for garnish.