2cupslime sodachilled, or lemon-lime soda like Sprite or 7UP
4lemonsjuiced (about ½ cup juice)
4scoops vanilla ice creamabout ½ cup each
4key lime slicesor regular lime slices
4lemon slicesfor garnish
Instructions
Cut the lemons in half and squeeze out the juice. Strain out any seeds. You should have about ½ cup.
Pour the lemon juice into a pitcher or large jar. Add the chilled lime soda and stir gently to combine. Taste and add a splash more soda if it's too tart.
Add one scoop of vanilla ice cream to each of 4 glasses.
Tilt each glass and slowly pour the lemon soda mixture over the ice cream, letting the foam rise to the top.
Garnish each glass with a key lime slice and a lemon slice on the rim. Serve right away with a straw and a spoon.
Notes
Chill the soda and glasses ahead of time so the ice cream melts more slowly. Taste the lemon and soda mixture before pouring and add a splash more soda if it's too tart for you. Floats are best served right away. The lemon juice can be squeezed up to 3 days ahead and kept in the fridge, but mix it with the soda just before serving so it stays fizzy.