Flour ~ Baking Powder ~ Baking Soda Salt ~ Egg ~ Ground Ginger Ground Cinnamon ~ Ground Cloves Shortening ~ Butter ~ Brown Sugar Molasses ~ Vanilla Extract Holiday Nonpareils
In a medium bowl combine flour, baking powder, baking soda, salt, ginger, cinnamon, and cloves until well mixed.
Combine the butter, shortening, dark brown sugar, and egg in the bowl of a stand mixer fitted with the paddle attachment and beat at medium speed until well mixed.
Scrape down the sides of the bowl with a rubber spatula and add the molasses and vanilla. Continue to mix until combined.
Gradually add the flour mixture to the butter mixture and beat until smooth.
Line an 8 x 8-inch square pan with parchment paper, letting some hang over the sides. You'll use these as grips later. Press the dough into into the pan so it's even and flat.