The biscuits are finely crumbled and mixed well with the very soft, preferably liquid margarine and placed in the mold as a base.
The remaining ingredients except for the egg whites are whipped together until creamy with the mixer, the egg whites are beaten until stiff and carefully lifted into the cream mass.
The mass is spread smoothly on the floor and baked at 140 ° C circulating air (alternatively gas level 1-2 or 160 ° C lower and upper heat) for about 70 minutes.