Mix "A" until crumbly and pat into a 13x9 inch pan. Bake at 350 degrees for 10 mins. Mix together "B" Pour over the crust and bake at 350 degrees for 45 mins until custard is set.
For Merinque: Beat the 6 egg whites stiff. Add remaining ingredients. Beat stiff spread over the torte and bake at 350 degrees for 15 mins or until lightly brown.
Don't know if this is the one you had but it is good and it does have several layers.