Ingredients :
30 eggs (the yellow part)
525 – 600 gr of shaked butter
100 gr wheat flour
300 gr sugar
3 table spoon of sweet milk
1 table spoon of layer cake spice (can be buy in supermarket)
1/2 tea spoon of vanilla

Methods :
Mix the eggs, sugar and vanilla, shake them all. Add the layer cake spice, wheat flour and butter. Prepare the baking plate with heat above 200 celcius. Use the 20×20x8 cm plate. Lubricate the plate with butter and bread paper, then lubricate it again with butter. Put 3-4 table spoon of the batter, baked it for 5 minutes. After it turned to yellow, lubricate the plate with the shake butter.
Press slowly the cooked layer, repeat the process from putting the batter again until the batter is all used. After the layers are baked, pull the cake out of the plate (by placing the plate up side down).  Cut it to squares and serve them.