Preheat your oven to 350 ℉. Line a 9x5" loaf pan with parchment paper.

In a large bowl, quickly whisk together the eggs, milk, butter + vanilla. And then also quickly add in the flour, powdered sugar, cinnamon, baking powder and salt and mix until smooth. Batter is supposed to be on the thin side.

Peel, core and slice your apples REALLY THIN with a mandoline (I used Fuji apples but Honeycrisp or Pink Lady are great here too). Add them into the bowl and mix to coat all in the batter. Transfer the apples only to the pan, a little at a time, gently flattening out any pieces that are sticking up. Pour on the remaining batter to the top of the loaf pan evenly. Transfer to the oven and bake for 50-60 minutes. Or until the top is golden brown.

Allow to set in pan for 10 minutes then transfer to a wire rack to cool for another 15 minutes. Optional: sprinkle with a little powdered sugar and slice to enjoy.