Ingredients
Method
- Heat the oven to 350°F (175°C). Line a 9x13-inch metal pan with parchment paper, leaving an overhang on the long sides.
- Whisk the melted butter and brown sugar until smooth. Whisk in the eggs one at a time, then the vanilla and orange zest.
- Stir together the flour, baking powder, ginger and salt, then fold into the wet mixture just until no dry streaks remain. Fold in the white chocolate chips and dried cranberries.
- Spread the batter evenly in the pan and bake for 18 to 22 minutes, until the edges are golden, the center is set and a toothpick comes out clean or with a few moist crumbs.
- Cool the base completely in the pan on a wire rack.
- Beat the cream cheese until smooth, then beat in the powdered sugar, vanilla and orange zest until thick and creamy. Spread over the cooled base.
- Sprinkle with the chopped cranberries and drizzle with the melted white chocolate.
- Refrigerate for 1 hour, until the frosting is firm. Lift out with the parchment, cut into 12 squares, then cut each square diagonally into 2 triangles.
Notes
Storage: keep the bars in an airtight container in the refrigerator for 3 to 4 days. Freeze them, wrapped individually or layered with parchment, for about 1 month for best quality; thaw overnight in the refrigerator.
Make ahead: bake the base up to 1 day ahead, cover the cooled pan tightly and keep it at room temperature; frost and decorate on the day you serve.
Substitutions: use a chopped white chocolate bar instead of chips; replace the ginger with 1/4 tsp cinnamon; leave out the orange zest if you prefer a plain vanilla flavor.
Pan: a metal pan bakes most evenly. In a glass dish, watch the edges and expect the center to need a little longer.
Nutrition: calories are an estimate per bar (1/24 of the recipe), calculated from standard ingredient values, not a laboratory analysis.
