Watermelon Soda Float

Lime Frozen Yogurt:

Refrigerate the yogurt until it softens enough to be easily scooped. Move it to large bowl and add lime zest and juice, then mix just until combined. Return it to the same container and freeze.

Watermelon Soda:

Scoop out some of the melon into pretty balls and set aside. Chop up the rest of the watermelon to make 8 cups. Make a simple syrup by combining sugar and water and stirring until sugar dissolves.

In the jar of a blender, puree the melon until smooth. Strain the juice into a large pitcher and add the simple syrup, lime juice and salt. Cover and chill.

Arrange melon balls between glasses. Mix seltzer into watermelon soda and pour over melon balls. Add a scoop of lime yogurt and serve with a long spoon.