Popovers with Wild Mushroom Sauce
We used morel mushrooms, a spring variety known for its nutty flavor and pitted flesh, but any wild mushrooms, an assortment, or even cultivated mushrooms will also make a nice sauce. You can prepare the popover batter in advance, and refrigerate it for up to one day. Let it stand at room temperature for 20 minutes before baking. The sauce can also be made one day ahead. Let it cool completely, then refrigerate. Reheat over medium-low heat, adding heavy cream to thin, if necessary. If you have leftovers, keep them in an airtight container for up to one day.