How to Make a Ribbon Fry Cutter. Those tasty ribbon fries that you bought and consumed at the county fair can now be made in your own kitchen. First you need a spiral cutter, which can be made in your garage, and a deep fryer and you are ready to make ribbon fries at home. With a homemade ribbon fry cutter you can make this treat again and again. Drill a hole at the tip of the knife blade. The hole needs to be large enough to thread the screw into. The diameter of the screw is optional and the length should be about 1 inch. Thread the screw completely into the hole at the tip of the knife blade.