Log Cake




4 eggs

40g vegetable oil

60g milk

10g cocoa powder

1g ground coffee

15g dark chocolate

38g cake flour

45g granulated sugar


  1. Mix vegetable oil, cocoa powder, and ground coffee until well combined. Add in milk, whisk until well combined. Add in cake flour, mix until smooth. Add in 4 egg yolks and melted dark chocolate, mix until well combined.
  2. Add in lemon juice and granulated sugar into the egg white, and use a hand mixer to beat until it forms soft peaks. Take a scoop of whipped egg white to mix with the batter first until just combined, and then pour all the batter into the whipped egg white to mix until just combined.
  3. Line the baking tray (28*28cm), pour all the batter into the baking tray, and give the pan a few taps before send into the oven. Preheat the oven to 302℉(150℃)and bake for 25 minutes.
  4. Let the cake cool down on the cooling rack.



2g ground coffee

215g heavy cream

20g granulated sugar

100g mascarpone cheese



  1. Put ground coffee, 15g heavy cream, sugar, and mascarpone cheese together and beat until smooth.
  2. Add in 200g heavy cream, beat until thickened.


Assemble the Cake

  1. Let the cake cool down on the cooling rack and then peel off the parchment paper or baking mat.
  2. Put the filling onto the cake, smooth it, and roll the cake up. Let the cake cool in the fridge for half an hour until set.
  3. Decorate the cake with rest of the filling. Dust with powdered sugar and cocoa powder. Decorate with chocolate and rosemary (optional).

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