Alfajor Santafesino

Mix flour, baking powder, butter, yolks, vanilla, and milk into a smooth pastry dough.

Roll thin rounds, prick them, and bake until lightly golden and crisp.

Stack three pastry rounds with dulce de leche between the layers.

Stir powdered sugar with lemon juice into a pourable glaze.

Coat the alfajores with glaze and let them dry until the surface turns satin-white.