01 - In a medium bowl, whisk together flour, ginger, cinnamon, cloves, nutmeg, allspice, baking soda, and salt.
02 - In a large bowl, beat unsalted butter and packed brown sugar until the mixture is light and fluffy, about 2 to 3 minutes.
03 - Add molasses, egg, and vanilla extract to the creamed butter mixture and mix until fully combined.
04 - Gradually mix in the dry ingredient blend, stirring just until a soft dough develops.
05 - Divide dough into two equal portions, shape each into a rectangle, and wrap with plastic wrap. Refrigerate for at least 20 minutes.
06 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
07 - On a lightly floured surface, roll each dough rectangle to 1/4-inch thickness. Cut into sticks approximately 1/2 by 4 inches.
08 - Place sticks 1 inch apart on prepared baking sheets.
09 - Bake for 10 to 12 minutes, until the edges are just set but the centers remain soft. Cool on sheets for 5 minutes, then transfer to a wire rack to cool completely.
10 - For decoration, mix powdered sugar with enough milk or lemon juice to create a thick glaze. Drizzle over cooled sticks and finish with sprinkles or melted white chocolate as desired.