Preheat the oven to 350 degrees Fahrenheit. Line a 9×13 pan with parchment paper, and lightly grease with nonstick spray. Set it aside.
Add the butter and brown sugar to a large bowl and mix them together for 2 to 3 minutes, until light and fluffy. 1 1/2 cups brown sugar, 1 cup unsalted butter
Add in the eggs, and vanilla extract and stir until just combined. 2 large eggs, 2 tsp vanilla extract
Add in the dry ingredients, flour, cornstarch, orange zest, baking powder, salt, ginger, and baking soda. Stir until you have a soft cookie dough. 2 cups all purpose flour, 1 TBS cornstarch, 1 tsp orange zest, 3/4 tsp baking powder, 1/2 tsp salt, 1/2 tsp ground ginger, 1/4 tsp baking soda
Gently fold in the dried cranberries, and white chocolate chips until evenly mixed into the dough. 1 cup dried cranberries, 1/2 cup white baking chips
Scoop the batter into the prepared pan, pressing the dough to the edges, and pressing the top down evenly.
Bake the bars for 15 to 22 minutes minutes until the top is golden and the bars are baked through.
Place the pan on a wire cooling rack and let the bars cool completely.