Gluten-free rum and fudge layer cake

Ingredients

• Cake
• 1/4 cup neutral (unflavoured) oil – Nici used sunflower oil
• 6 medium eggs, separated
• 100 millilitre freshly brewed espresso
• 2 teaspoon vanilla extract
• 160 gram gluten-free flour – Nici used Edmonds plain flour
• 1 1/2 cup sugar
• 1 teaspoon baking powder
• 1/2 teaspoon cream of tartar
• 1/2 teaspoon cinnamon
• pinch of salt
• Fudge frosting
• 1/2 cup brown sugar
• 30 millilitre cream
• 100 gram dark chocolate, broken into pieces
• 3 cup icing sugar
• 200 gram butter, softened
• 3-6 tbsp milk
• 1/2 teaspoon vanilla extract
• 1/4 cup rum – Nici used Appleton Estate
• 6 tablespoon espresso
• 1 tablespoon sugar