Chocolate whoopie pies

Chocolate whoopie pies Prep: 1 hour Cook: 12 minutes Makes: 2 dozen Note: Adapted from a recipe from the "Boston Globe's Cookbook for Brides," reprinted in "Making Whoopies: The Official Whoopie Pie Book" by Nancy Griffin. For the pies: 2 cups flour 1 cup sugar 1/3 cup cocoa 1 teaspoon... Bill Hogan/Chicago Tribune