Lemon Trifle

The lemon-sugar mixture can be prepared up to 4 hours ahead and kept at room temperature. However, the cream must be whipped and the dessert assembled just before serving, as the acid will begin to deflate the whipped cream within 30 minutes.

This dessert is best served immediately and does not store well. The acid from the lemon juice will cause the whipped cream to separate and weep if held for more than 1 hour. If you must hold it briefly, refrigerate for no more than 30 minutes.