Storage: The avocado mousse can be made up to 5 hours in advance. Keep the raspberry sauce refrigerated separately until serving.
Substitutions: If currant jelly is unavailable, you can use apricot jam or grape jelly for the sauce. Fresh raspberries can be used instead of frozen, adjusting the jelly amount if the berries are very tart.
Tips: To prevent the avocado mousse from browning, ensure the lemon juice is well incorporated. For a richer flavor, use high-quality heavy cream.