01 -
Preheat oven to 200°C. Line a jellyroll pan with parchment paper and spray lightly with baking spray. Sift together flour and espresso powder in a small bowl and set aside.
02 -
Beat egg whites with electric mixer until foamy. Gradually add 5 tbsp sugar and continue beating to medium peaks. In a separate bowl, beat egg yolks, whole eggs, and remaining 3 tbsp sugar until reaching ribbon stage (5-10 minutes).
03 -
Gently fold the egg white meringue into the yolk mixture in three additions to preserve airiness. Fold in sifted flour mixture just until combined. Pour batter evenly into prepared pan, tap gently to level and remove air bubbles. Bake for 8-10 minutes until set.
04 -
Dust cake surface with cocoa powder immediately after baking. Turn cake onto fresh parchment paper, peel off original parchment, then roll the cake and paper together from the short end. Let cool for 20 minutes. Unroll gently and cool completely.
05 -
Beat cold heavy cream, confectioners’ sugar, vanilla extract, and coffee liqueur until soft peaks form. Fold in mascarpone cheese gently. Spread half of the filling evenly over cooled cake, leaving a 0.6 cm border.
06 -
Roll the cake tightly from the same side. Frost exterior with remaining filling. Dust with cocoa powder and trim ends just before serving.