WHOOPIE PIE FILLING (for Whoopie Pies or Devil Dogs) By Gloria Pitzer, as seen in… Secret Make Alike Recipes  – Revised (Secret RecipesTM, Marysville, MI; May 1997, p. 55). This is a favorite Amish recipe from our recent travels through Indiana. INGREDIENTS: 6 TB butter 1 cup sugar 1 egg 2 cups flour ½ cup … Continue reading WHOOPIE PIE FILLING (for Whoopie Pies or Devil Dogs)