Separate the yolks from the proteins. Whisk the yolks with sugar. Then add sour cream and melted butter. Stir with a mixer. Add flour mixed with soda, whisk. Beat the whites and, gently mixing, enter into the dough.
Grease the baking dish with oil, pour the dough and bake in a preheated oven at 180 degrees 40 minutes.
Sprinkle strawberries with 3 tablespoons of sugar, leave for a while so that the juice comes out.
Cool the finished cake on a wire rack and cut in half. Lubricate each cake with strawberry juice.
Put strawberries on the bottom cake.
Beat sour cream with icing sugar. Pour the strawberries with the resulting cream.
Cover with a second cake. Put the remaining sour cream on top. Appetizing cake decorate and give time for impregnation.