How to refresh a frozen bagel
Buy or make fresh bagels and store them uncut in a plastic bag with the air squeezed out of it in the freezer for up to one month. When you want to prepare a "like fresh" bagel, run it briefly under water (I used filtered water) so that the outside crust is damp but not soggy. Wrap it tightly in foil with a small vent, 1/2" long by 1/8" wide, on one side and heat in a 400°F oven (I use our toaster oven) for about 15-20 minutes, depending upon how cold your freezer is. The bagel will be as soft as it was when it originally came out of the oven and the hot oven will cause the crust to crisp through the foil. Don't let it over bake or it will be rock hard though.