One of the key features of invisible apple cake is the meticulous layers of apples. This is accomplished either by uniform, thin cuts made by using a mandoline slicer, but bakers need to be sure not to slice too thinly or the apples will become mushy during the baking (somewhere between 1/8th and 1/16th inch thick). The next element is the custardy batter, which often consists of eggs, milk, and just a bit of flour. This mix is easy to flavor with numerous spices, from plain vanilla to a seasonal pumpkin pie spice. Once both the apples and batter have been prepped, bakers must do a bit of architectural shingling with the apples followed by a diligent pouring of batter. Normally baked in a rectangular loaf pan, the cake can be topped off with a bit of slivered almonds or other nuts.
Though this stunning hidden apple dessert can be served plain, a bit of caramel sauce and a scoop of vanilla ice cream would be welcome. Even without these accouterments, the invisible apple cake is sure to be the most elegant dish of the season.