* Skim milk does not work here. It causes the popovers to burn easily.
** Why 10 to 15 minutes? If you prefer more custardy popovers, bake for 10 minutes at 350 degrees at this step. If you want more crispy popovers, bake for 12 minutes, check to make sure they aren't burning, and bake for 3 more minutes.
NOTE: Room temperature ingredients work better here, but if you have a superb oven, using cool ingredients will still yield splendid results.