Start with the cardigan you want to make over.
Mine was too long so I marked with tailors chalk and a straight edge where I wanted to cut it off at.
After removing th excess fabric I folded my sweater so my side seams met up and marked a half circle shape.
Cut out your half circle.
Using the pieces you just cut out make templates for your side pannels. I decided to make mine in a vibrant red.
I cut mine out larger than the original so that I had more stretch.
I then took the fabric I had originally cut off from the bottom and cut strips to make a "ruffle". I pinned and sewed the ruffle onto my side pannels.
Carefully pin your side pannel into place- make sure you pinned it correctly before you sew.
It should look like this once you've sewn it into place. Finish by hemming the bottom and you're done!