For the cookies:
Preheat the oven to 350 degrees F.
In a medium bowl, sift the flour, baking powder, baking soda, cinnamon, cloves, ginger and nutmeg. Set aside. In a mixer, beat the butter and sugar until fluffy. Add egg and molasses, and beat until smooth. Add the flour mixture, a little at a time, and mix until incorporated and a dough is formed. Refrigerate until firm, at least 3 hours.
Roll dough out to 1/4-inch thick, and cut gingerbread men with cookie cutters. Transfer to an ungreased cookie sheet and bake until set, about 6 to 8 minutes. Cool on wire racks.
For the icing:
In a mixer, combine sugar, cream of tartar, and egg whites*, and beat until stiff peaks form, about 7 minutes. Mix in the lemon juice to taste. Transfer icing to a piping bag and decorate gingerbread men.
A viewer or guest of the show, who may not be a professional cook, provided this recipe. It has not been tested for home use.
Recipe courtesy of Joanna, Hamilton Swap, NJ