Heat oven to 400℉ (200℃).
Line jellyroll pan with parchment and spray with baking spray. Set aside.
Sift flour and espresso powder together in a small bowl. Set aside.
With an electric mixer fitted with the whisk attachment, beat egg whites until foamy.
Add 5 Tablespoons sugar, a little at a time, continuing to beat to medium peaks. Set aside.
With an electric mixer beat egg yolks, whole eggs, and 3 Tablespoons sugar to ribbon stage, about 5-10 minutes.
Fold in meringue in 3 additions.
Fold in flour mixture.
Pour into prepared pan, making sure to get batter all the way to edges and in corners.
Tap to level and remove air bubbles.
Bake for 8-10 minutes, or until done.
Immediately dust top of cake with cocoa powder.
Turn out onto parchment.
Carefully remove pan and peel parchment off of baked cake.
Beginning with short end, roll cake and parchment up together jelly roll-style.
Allow to cool for 20 minutes.
Gently unroll cake.
Allow to finish cooling.