Don’t let the sharp corners of a square cake intimidate you. It’s easy to use your hands to shape fondant around the corners, so you finish with perfectly smooth edges.
Steps
step 1
Prepare cake by lightly covering with buttercream icing. Position fondant on cake, smoothing the top with the Easy-Glide Smoother. Pull the corner flaps gently out and away from the cake; smooth the corners with hand to eliminate the creases. Smooth sides with Smoother.
step 2
Trim off excess fondant at bottom with a spatula or sharp knife.
step 3
To give a finished look, smooth top, all sides and bottom edge of cake again with the Smoother.
Source:wilton