Hazelnut and French Herb Popovers

We followed this recipe exactly and were very pleased with the result, tho when we do them again, we will definitely make some changes. One caution--the recipe states that it makes 12 popovers in a standard muffin pan. If, however, you use a popover pan, it makes 8 - 9 popovers. The use of the ground nuts brings a bit of body to the popover and is actually a very nice variation. However, hazelnuts are very expensive and the taste of the hazelnut is not really discernible. So next time, I will use ground almonds or walnuts or pecans. Moreover, I think the herb amount could be increased a bit. Even tho the recipe cautions that one is not to open the oven, happily we disobeyed and opened it a minute or two before the designated time and thank goodness! The popovers were done, even tho we had used popover pans rather than muffin pans.