2 tablespoons sour cream
300 g flour
150 g butter or margarine
400 g confectioner`s sugar
5 yolks
2 egg whites
1 kg peeled and pitted plums
1 teaspoon ground cinammon
shortening for the pan

Peel and pit 2 lbs of plums, sprinkle with some sugar and cinammon and let rest. Make a dough out of 300 g sugar, 150 g butter, 3 yolks and 300 g flour. Knead well, roll into a finger thick sheet. Place this sheet into the greased pan and put the well drained plums over it. Pour the following mixture on top of the plums. 2 tablespoons sour cream mixed with 2 yolks, 100 g sugar and 2 whipped egg whites. Bake at medium heat. Serve cut into squares or rectangles.