I got this out of the book: So Your Dog's Not Lassie
Cut hot dogs (I use turky weiners) into thing slices. Spread in a single layer on a plate suitable for microwave.
Microwave: high for 5 minutes, rotate and cook 1-2 minutes until dry & hard.
Oven: 225 degrees, bake until dry. 30 min - 1 hr.
Treats will last for several weeks without refrigeration.