Preheat the oven to 350 degrees. Line a 9x13 baking dish with parchment paper.
Sift the flour, baking powder, ginger and salt together in a medium bowl. Set aside.
Mix together the melted butter and brown sugar together on medium speed until blended. Then, add in the eggs, orange extract, and vanilla extract.
Add in the sifted flour mixture and beat until just blended. Don't overmix.
Stir in the white chocolate chips and craisins by hand. Then, pour evenly into the prepared baking dish.
Bake until golden brown. 30-40 minutes. I baked mine around 35 minutes before it was done.
Let bars cool completely on wire rack before frosting.