Easter Cake with Sour Cream

Description
In Romanian: Pasca cu smantana

Sweet bread dough

 * 2 lbs / 1 kg flour
 * 10 oz / 300 g sugar
 * 1½ cups milk
 * 6 eggs
 * 2 oz / 50 g yeast
 * 7 oz / 200 g butter
 * 2 tablespoons oil
 * vanilla stick
 * salt

Filling

 * 2 lbs / 1 kg sour cream
 * 3 tablespoons flour
 * 6 yolks
 * 3 egg whites
 * a little vanilla
 * sugar to taste
 * salt

Directions

 * 1) Mix the yolks with the sugar, add salt, vanilla, sour cream and mix well, adding the flour gradually. Add the whipped egg whites.
 * 2) Roll a pencil thick sheet out of the sweet bread dough. Place in a baking pan.
 * 3) From another piece of dough form a long, finger thick roll and arrange it around the sheet, sticking to the walls of the pan.
 * 4) Place the filling within, without covering the roll on the edges.
 * 5) Make two more such dough rolls and place them over the filling in an X shape.
 * 6) After the cake has risen a bit in a warm place, use a little egg wash over the dough rolls.
 * 7) Set in the oven to bake. Remove from the pan when it is cold.