Emeril's Tiramisu — cookaz

Ingredients

• For the sponge cake
• 1/4 cup milk
• 2 tsp butter
• 1 1/4 cup flour
• 1 tsp baking powder
• 3 eggs
• 1 1/4 cup sugar
• 3 egg yolks
• For the mascarpone cream
• 1/2 cup + 2 Tbsp Espresso coffee
• 1/2 cup + 2 Tbsp hot water
• 3 tbsp Grand Marnier
• 1 cup mascarpone cheese
• 2 tbsp rum
• 3 eggs, yolks and whites separated
• 6 tbsp sugar
• 1 cup heavy cream
• 1/4 tsp vanilla
• A pinch of salt
• For garnishing
• Cocoa powder, unsweetened
• Icing sugar