I want to make a Schnitten that is a cake base topped with a layer of sweetened berries and a meringue (Beerenschaumschnitten). However, I live in the middle of a desert and have little access to fresh berries, though we get very good frozen ones. Can I sub frozen berries for fresh ones, and do I have to make any changes to the recipe? I would assume I thaw and drain them, and maybe pat them dry? My fear it that they will be too wet and my meringue will just collapse into the berry layer and get all mushy. Is the type of berry I use likely to make a difference? I can get raspberries, blueberries or 'fruits of the forest' mix.