3 twelve layer mocha cake Recipes

egg yolks at room temperature 30 minutes, whole milk, pure vanilla extract, sugar, divided, all-purpose flour, salt, egg whites at room temperature 30 minutes, fine-quality 60%-cacao bittersweet chocolate, finely chopped, water, eggs, separated , at room temperature 30 minutes, salt, sugar, divided, unsweetened cocoa powder, hazelnuts (3 1/2 oz), egg whites at room temperature 30 minutes, salt, cream of tartar, sugar, water, sugar, instant-espresso powder

egg yolks , at room temperature 30 minutes, whole milk, pure vanilla extract, sugar, divided, all-purpose flour, salt, egg whites , at room temperature 30 minutes, fine-quality 60% -cacao bittersweet chocolate, finely chopped, water, eggs, separated , at room temperature 30 minutes, salt, sugar, divided, unsweetened cocoa powder, hazelnuts (3 1/2 oz), egg whites , at room temperature 30 minutes, salt, cream of tartar, sugar, water, sugar, instant espresso powder, sugar, divided, water, egg whites , at room temperature 30 minutes, instant espresso powder, instant espresso powder, tablspoon pure vanilla extract, cream of tartar, salt, unsalted butter , cut into tablspoon pieces and softened, fine-quality 60% -cacao bittersweet chocolate, melted and cooled to lukewarm