Can You Freeze Meringues?
Most types of meringue can be frozen for one to three months. To freeze meringue, allow it to cool to room temperature after cooking. Place it in a freezer-safe bag or a rigid, airtight container and seal firmly. Defrost frozen meringue at room temperature for two to three hours before serving. Serve at room temperature, or reheat the meringue in the oven until warmed through.