"[Photograph: Carrie Vasios] In these decadently delicious bars, a shortbread crust is layered with spiced apples and homemade caramel then finished with a crumb topping. Note: To make quick work of the apple slices, I prefer to use a peeling machine such as this one, which I think is also a great investment for pies. If you're doing the slicing by hand, simply peel and core the apples then slice into 1/8-inch slices. About the author: Carrie Vasios is the editor of Serious Eats: Sweets. She likes to peruse her large collection of cookbooks while eating jam from the jar. You can follow her on Twitter @carrievasios..."