Mix together 1 pound cake mix with 6 oz water and 1 oz vegetable oil. Mix on low speed until mixture comes together, then on second speed for 2 minutes. Using the # 40 purple scoop, scoop out cake circles, bake at 375°F until completely set and cakes spring back lightly when touched. Let cool completely.
Irish Creme Filling: Combine 2 pounds Holland Creme and 1.5 oz Irish Creme Liqueur.
Whiskey Filling: Combine 2 pounds Holland Creme and 1.5 oz Whiskey.
Coffee Liqueur Filling: Combine 2 pounds Holland Creme, 1.5 oz Kahlua and 1 tsp coffee extract.
Fill whoopie pies with desired filling, top with another pie, roll in desired garnish and serve.
Coffee Cake, Buttercreme, Buttercream, Irish Creme, Whiskey, Coffee, Boozy, Chocolate, Whoopie, Pie