Preheat oven to 350°F/180°C. Place parchment paper on a 8 inch × 8 inch pan.
Beat in egg yolks and half of the sugar (A). Combined with sifted flour.
Beat egg whites with an electric mixer. Add the rest of the sugar (A).
Mix egg white meringue into the yolk mixture a third at a time. Add milk.
Pour into the pan. Bake for 10 minutes.
Whip heavy cream and sugar (B) with a whisk. Mix together with the mascarpone!
When the sponge cake is cool, spread with cream and some strawberries.
Roll up the cake!