Heat oven to 450°F. Generously grease 6-cup popover pan or six (6-oz) custard cups with shortening.
Beat eggs slightly in a medium bowl with a fork or whisk. Beat in remaining ingredients just until smooth (do not overbeat).
Fill popover cups about ½ full. Bake 20 minutes.
Reduce oven temperature to 350°F. Bake 15 to 20 minutes longer or until deep golden brown. Immediately remove from pan. Serve warm.
