Classic Polish apple cake on a shortcrust base with caramelized apples and a cinnamon crumble topping.

Combine flour, baking powder, salt, sugar, cold butter, sour cream, and egg yolk.
Quickly knead just until a smooth shortcrust dough forms. Do not overwork.
Wrap dough and chill for about 60 minutes.
Make crumble: rub flour, cold butter, and sugar together until sandy crumbs form. Chill.
Roll chilled dough and line a parchment-lined baking pan. Dock the base with a fork.
Blind bake at 180 C for 20 minutes with baking paper and weights.
Remove weights and bake 10 more minutes at 170 C until lightly golden.
Peel and slice apples into thin pieces.
Melt butter in a large pan, add apples, sugar, and cinnamon, and cook until softened and lightly caramelized.
Spread apple filling over the pre-baked base and top evenly with chilled crumble.
Bake at 180 C for about 40 minutes until golden on top. Cool before slicing.
Photos from the process.










