# Step-by-step Directions:
01 - Bring 2 cups of water to a boil in a small saucepan. Remove from heat, add dried butterfly pea flowers, and steep for 5 minutes until the infusion develops a deep blue color. Strain and allow to cool.
02 - In a pitcher, combine freshly squeezed lemon juice and granulated sugar. Stir thoroughly until sugar is fully dissolved.
03 - Pour 2 cups of cold water into the sweetened lemon mixture and mix well.
04 - Fill glasses with ice cubes and lemon slices.
05 - Distribute equal amounts of the cooled butterfly pea flower infusion into each glass.
06 - Gently pour the prepared lemonade over the blue infusion in each glass to observe the vibrant color change.
07 - Briefly stir to blend. Serve immediately.