Trim a very thin top layer of the cakes to level them using a serrated knife. Place a small amount of frosting on your cake stand to anchor the cake, then set down the first layer.
Spread 3 big scoops of vanilla cream cheese frosting evenly, add the second layer, and repeat. Carefully place the third layer of cake and make sure the cake is straight.
Apply a thin crumb coat to seal in crumbs, then chill the cake for 30 minutes. Once set, frost the cake fully and smooth it out.
Chill again for at least 30 minutes. Pour the chocolate fudge glaze over the top of the cake and use an offset spatula to spread it evenly, allowing it to gently drip over the edges for a smooth, natural finish.
Store the leftover cake in an air tight container for 2-3 days in the fridge or up to 2 months in the freezer.