New cake Aspen Log (Торт Березовое Полено)

I went to Russia a couple of weeks ago. I really enjoyed my trip and enjoyed Russian food too. I brought back a couple of recipes that I would like to try. Here is one of them: Aspen Log Cake.    
There are three parts for the cake: batter, filling and cream for the topping.
For batter you will need 6 eggs, 1 cup if sugar, 1 cup of floor, 1/2 tbsp  of salt, 1 1/2 tbsp of baking powder and 2 tbsp of vanilla. Place all the ingredients into a mixing bowl and mix them together with the kitchen mixer into runny batter. (About 2 minutes)
Prepare baking sheet (light is better than dark). Take a parchment paper of the size of the baking sheet. Fold it according the size of the sheet and generously spray it with baking spray (or cover with the oil by hand). Pour ready batter into the prepared baking sheet, spread it over the parchment paper evenly. Bake 13-15 minutes at 365 F temperature until slight golden brown top.
Filling: 1 cup of fresh raspberries mixed with 1/2 cup of sugar, break the berries with the fork, mash it into runny berry sauce.
As soon as you take the cake out of the oven, spread berry sauce evenly over the cake and roll it up into a roll while it is hot! It is important - do it immediately while it is hot, otherwise it won't roll up.
Let the roll to cool down completely.
 Prepare the cream for the topping: 1 cup of sour cream mix with 1/2 cup of sugar.
When cake is cool down, spread cream evenly on the top of the roll making it looking like a log. Scrape a chocolate bar or candy with the knife and decorate the top of the cake with the pieces of the chocolate so it will look like an aspen log.
Cool it down in the fridge overnight. It will taste better! Sorry, I couldn't add any pictures today, check out the FB page to see the cake picture.
http://www.facebook.com/photo.php?fbid=10151323285925821&set=a.71025005820.106143.526275820&type=1&theater