Wash the strawberries and puree them to make a thick cream. Roughly crumble the meringue in a bowl. Whip the cream until stiff.
Mix the strawberries, meringue and cream well and place the whole thing in a rectangular dish coated with liqueur. The semifreddo should be in the freezer for at least 4 hours so that it will later get the desired consistency.
Fetched from the freezer, serve with strawberries, cream, etc. as the mood takes you.