Heat the oven to 350°F and line a 9 × 5 inch loaf pan. Whisk eggs, milk, butter, and vanilla, then whisk in flour, sugar, cinnamon, baking powder, and salt.
Peel and core the apples. Slice very thinly with a knife or a mandoline fitted with its hand guard. Fold the slices into the thin batter.
Layer the coated apple slices in the pan, flattening them gently. Pour the remaining batter over the top. Bake 50–60 minutes until golden and set.
Rest in the pan for 10 minutes, then lift onto a rack and cool before slicing.
Contains wheat, milk, and egg as written. The supplied recipe allows a 1:1 gluten-free flour blend; that substitution has not been kitchen-tested for this site.Inspired by Stella Drivas.Estimated nutrition is for one of 8 equal portions. Calculated with about 817 g prepared apple from 2 lb whole fruit and whole milk.