01 - In a large pitcher, combine cold water, lemon juice, and maple syrup. Stir well until syrup is completely dissolved.
02 - In a small bowl, whisk blue spirulina powder with 1/2 cup room temperature water until fully dissolved and smooth.
03 - Pour spirulina mixture into lemonade base and stir until evenly colored throughout.
04 - Taste and adjust sweetness or lemon juice as desired to balance flavors.
05 - Add ice cubes, lemon slices, and fresh mint leaves to pitcher or serving glasses.
06 - Serve immediately while chilled for best presentation and flavor.