I haven't made one YET (my list is getting longer lol) but I will try to explain MY understanding of how it's done.
After you have gathered the fabric/ribbon...remember the stitching is done down the centre...you fold at the centre, this will bring BOTH edges together to the outside and you will have the FOLD on the inside. Make sense so far?
As you do this, form a circle and stitch to your cut out circle. Then add your centre embellishment.