100% apples my friend. I used a mandolin to slice the apples so that they were thin and uniform, but its hard to slice ALL of it right? So I took the little left over slivers, chopped them down, and cooked them into a soft apple pie filling with some sugar, lemon, a splash of white wine. Then I spread that into the par-baked crust before arranging the slices on top as you see. It made it taste really good, I’m glad I did that, but it was sort of something I came up with on the spot