Using ingredient egg whites keep at room temperature

Passover Chocolate Roll

• 6 egg whites keep at room temperature
• 6 egg yolks
• 350 ml cream (heavy)
• 150 gr sugar
• 100 gr confectioners sugar
• 50 gr unsweetened cocoa
• 10 gr instant coffee
• 9 gr vanilla
• 4 gr vanilla
• 1 gr salt