The Crochet Larksfoot Granny Afghan is a FTM (from the middle) design, starting with a square, but then changing to a rectangle.

For this project, I used Caron Cakes with Red Heat With Love yarn and they really worked well together. I have been wanting to design a square to rectangle blanket like this for a while now. The square is lengthened on 2 ends working in rows after the square is completed. But if you enjoy the square, in the case of a bed topper blanket, just keep going until you reach your desired size.