Tiramisu Layer Cake

Name: Tiramisu Layer Cake
Prep time: 1 h 30 min
Cook time: 30 min
Total time: 2 h
Cuisine: Italian
Ingredients: 8 eggs; 1 ⅓ cups sugar; 1 Tablespoon instant espresso; 1 teaspoon vanilla extract; 1 1/2 cups all-purpose flour ((205 g)); 3 egg yolks; 1/3 cup sugar; 1 cup heavy whipping cream; 8 oz mascarpone cheese; 1 ½ Tablespoons Kahlua or coffee liqueur; 16 oz mascarpone cheese; 4 Tablespoons Kahlua or coffee liqueur (or to taste); 2 teaspoons vanilla extract; 3 cups confectioners' sugar; 2 cups heavy whipping cream; 1 cup milk; 3 Tablespoons Kahlua or coffee liqueur; 25-30 ladyfingers; 1/4 cup cocoa powder