In a mixer with the paddle attachment, mix 8 tablespoons of the butter, flour, salt, and 2 tablespoons of the sugar until sandy. In a separate bowl, blend the egg yolk and the creme fraiche. Add the blended egg yolk and creme fraiche to the flour mixture and mix until barely combined. Form into a disk and chill. Meanwhile toss the sliced apples with 1/2 cup of the sugar and cinnamon.
Roll out the dough to a 1/8-inch thickness on a floured surface and cut out 8-inch disks or 1 large round disk and place on a parchment lined sheet pan. Place the apples in the center of the dough, leaving a 2-inch flap of dough around the edge. Fold over the flap onto the apples, forming a rustic, uneven rim around the crostada. (The apples should NOT be completely covered with the dough.) Dot with the remaining 2 tablespoons of butter. Brush the edge with the cream and sprinkle with the remaining 2 tablespoons of sugar. Bake in a preheated oven 350 for 25 to 35 minutes, until light golden brown and apples are tender. Let cool.
Recipe courtesy Gale Gand
Recipe courtesy of Danny Boome
Recipe courtesy of Sandra Lee