Preparing food is more than just chopping, measuring and cooking. There are some safety rules to keep you healthy.
Using raw egg whites in uncooked desserts can be just as dangerous as using raw egg yolks. Looking back over some old Portuguese sweets, Natas de Ceu in particular, the common use of whipped raw egg whites is really risky. Beat your egg whites to soft peaks then poach them in water or milk before layering.