Beat together melted butter and brown sugar over medium speed with an electric mixer. Add in eggs, 1 tsp orange extract, and 1 tsp vanilla extract and beat until mixed well. Add in ground ginger, baking powder, salt, and flour, beating until just blended.
Stir in white chocolate chips and Craisins by hand. Spread evenly into the bottom of prepared pan. Bake in preheated oven for 18-22 minutes until set and golden brown at the edges. Don't overbake or bars will be hard.