Put the slices of bacon in a pan, let them lose the fat and throw it away. Put the slices of bacon in the pan together with the sage, after a minute or two add vinegar, if necessary adjust with salt and pepper and serve.
This preparation, almost in disuse, was typical of winter and was known throughout Umbria. In the area of Todi, sometimes people addes tomato. It was served for dinner, accompanied by some slices of bread.