Lemon roll

Ingredients: 

-eggs - three pieces 
-sugar - 1.5 cups 
-flour - 1 cup 
-lemon - one piece 

Preparation: 

Separate the egg whites from the yolks and beat with 1 cup of sugar. After that, add the egg yolks, sifted flour, and beat until smooth. 
After that, pour the batter onto a baking sheet lined with parchment paper, smooth it out and place it in the oven. 
Bake the roll in a preheated oven at 180 degrees for 15-20 minutes. 
While the roll is baking, prepare the filling. For this, wash the lemon, dry it, grate it and mix it with 1/2 cup of sugar. 
When the biscuit roll is ready, take it out of the oven, place it on a towel, spread the lemon filling on it and roll it up. 
Place the finished roll on a dish, sprinkle with powdered sugar and serve.