How To Frost A Square Cake With A Cardboard Box

In this cake decorating tutorial I share how to frost a square cake with a cardboard box to get super smooth sides and sharp edges and corners! To read a written version of this tutorial (with photos!) click here: http://www.britishgirlbakes.com/how-to-frost-a-square-cake-with-a-cardboard-box/ I used my 4 Minute Buttercream for this cake and you can find the recipe, tutorial, and FAQs here: http://www.britishgirlbakes.com/recipes/buttercream-frosting/ For my online cake decorating school click here: https://britishgirlbakes.teachable.com/courses SUBSCRIBE to my channel for new cake decorating tutorials every week!