Popovers
Popovers can be baked by themselves at a high temperature, or along with a roast at a lower temperature. Mix the batter up to a day ahead and refrigerate, not only for convenience but also for the highest, lightest popovers.
Cooks' Note
As an alternative, the popovers can be baked above a roast or chicken with the oven temperature set at 325°F. Bake them on the top rack for an hour, until puffed and crispy.