Grate the carrots.

Whisk egg yolk with water and 2/3 of the sugar. Add vanilla sugar and 1/2 teaspoon of cinnamon.

Whisk the egg white into snow with little salt. Once firm add one-third of the sugar.

Add rum, carrots, hazelnuts to the whisked egg yolk. Mixed well.

Mix carefully with the egg white snow.

Use baking paper or smear the baking form with butter.

Bake at most temperature of 140 degrees Celsius for 60 minutes. Look at it at 25 minutes.

Create chocolate glaze or melt chocolate and cover the cake with it.