ORANGE FLOAT

The lemon-cornstarch sauce can be made up to 2 days ahead and refrigerated in an airtight container. The oranges can be sliced and arranged in the serving dish up to 4 hours ahead. Add the meringue topping just before serving for best texture and appearance.

This dessert is best served the day it's made. If needed, cover loosely with plastic wrap and refrigerate for up to 24 hours, though the meringue will begin to weep and deflate. The lemon sauce may separate slightly; stir gently before serving.