Place an oven rack in the center of the oven. Preheat the oven to 350 degrees F. Line two baking sheets with parchment paper or silicon baking mats.
In a medium bowl, mix together the flour, sugar, ginger, baking soda, allspice, cinnamon and salt. Stir in the candied ginger and raisins. Set aside.
In a large bowl, beat together the melted butter, molasses and egg. Gradually stir the flour mixture into the molasses mixture.
Drop a heaped tablespoon of dough per cookie onto the prepared baking sheets, placing each about 1 inch apart.
Bake for 7 to 9 minutes. Allow the cookies to cool on the baking sheet for 10 minutes until they have set. Transfer to a wire rack and cool completely. Store in an airtight container.
Recipe courtesy of Giada De Laurentiis