Crumbly dough: In a bowl put the flour, egg yolks, salt and diced butter. Izmesva is crumbly dough was wrapped in foil and allowed to stand for 30 minutes in the cold. Sponge dough: Beat egg yolks with sugar, flour and starch. Spoon by spoon add the beaten whites. 4 baking sponge the base thickness 0.5-0.8 cm in preheated oven at 200 C for about 5 minutes. The diameter of the base is 30 cm. Bake the bases on pre-cut circles of cooking paper. Once cool, sprinkle with rum. On floured surface Roll crumbly dough with a diameter of 30 cm. Top impaled the base with a fork and bake for 10-15 minutes in a preheated oven at 200 C. For the cream: Pre-soak the gelatin in 100-150 ml cold water. Egg yolks with the sugar crash, vanilla, lemon juice of 1 lemon and grated peels of 1 lemon. Add the champagne and put in a saucepan on the stove over low heat. Stirring constantly for 10-15 minutes, until mixture thickens and alcohol is poizpari. Do not leave the cream to a boil. The gelatin is dissolved in hot mixture. Wait slightly gelled cream and then add broken and liquid sour cream. Leave the cream gently to gel again. You put the ring on cake plate with a diameter of 35-40 cm. Placing the bottom of the base crumbly dough. Placing on it a few tablespoons of warm strawberry jam. Top cover with sponge base, which is coated with 1/3 of the cream, place the second sponge base and put the other 1/3 of the cream. Arrange on top chopped strawberries, lightly flavored with strawberry jam. Placing third brother sponge dampened with the rest of the cream and finish with the last base. Leave in the fridge to set. before presenting decorate with strawberries, whipped cream and cigar. After removing the ring of cake, smeared with cream and paste biscuits. Sprinkle with powdered sugar.