Sparkling Cranberry-Ginger Panna Cotta
Keep unused portions of both cranberry and yogurt mixtures, covered, at room temperature while pouring and chilling layers in the glasses.
Toss 1/2 cup frozen cranberries with 2 tablespoons sugar. Spread on a paper towel-lined tray to thaw. As cranberries thaw, add additional sugar to coat (1 to 2 tablespoons total).