Using this cookie cutter is very simple:

roll the modeling compound into a thin sheet, and cut out with a cutter. Thin round edges with a thin whalebone or a smooth roller. Spread the center of the cut shape with edible glue along its entire length and fold, smooth, glue. Apply the adhesive to the lower edge of the folded mass. Slowly roll the matter, shape the petals. This creates a small peony flower. For large flowers connect another stripe of mass cut out form

With this cutter you can create peonies of 3 cm and 7 cm