|Sherry/Fruit juice||1⁄4 Cup (4 tbs)|
Put all the ingredients in the top of a double boiler and whisk over hot but not boiling water, until sauce is thick and frothy.
Do not overcook or it will separate.
Note: try not to make this sauce more than 15 minutes before serving.
If it has to be prepared in advance, whisk it again for 1 minute before serving.