Cake:
1Sift the flour and cornstarch and mix the butter with a fork.
2Make a well in the middle, pour the egg yolks, milk, powdered sugar and knead.
3Roll the dough, cut into circles.
4Place in a buttered baking dish.
5Bake at 160 ° C for twenty minutes.
Filling:
1Boil the potatoes, peel and mash.
2In a saucepan, combine potatoes with egg yolks, mixing sugar.
3Pour the wine and cook for three minutes.
4Brush the cake with the filling and cover with another cover.
5Roll the edge of crackers and serve.