Blue food coloring: A traditional (alcoholic) Blue Lagoon cocktail contains blue curaçao, an orange-flavored liqueur colored with blue food dye. Since blue curaçao contains alcohol, we simply use blue food coloring in this recipe. We used natural food coloring that's made with butterfly pea powder, but feel free to use anything you have on hand. 

Infuse the simple syrup with the orange peel for at least an hour to ensure that the simple syrup absorbs the orange flavor. This is not traditional in a regular blue lagoon cocktail, but since you're not able to use orange liqueur in this alcohol free version, it helps replicate that flavor. 

Using freshly-squeezed juices will really elevate the flavor of this mocktail. 

Simple syrup: We used a bottled variety to cut down on prep time, but you can easily make your own by combining equal parts water and sugar in a saucepan and heating until the sugar is completely dissolved.