Gingerbread bars with orange icing

These gingerbread bars hit their mark this year.  Be warned, they are spicy.  Not so much that kiddos didn't eat them but they are flavored.  The adults think they pinpointed the spice to the cloves and ginger.  They are a long way away from gingerbread cookies but they are tasty good.  

Recipe from Elephant Eats

1. 1/2 cup (1 stick) unsalted butter, melted and slightly cooled
2. 1 large egg
3. 1 cup light brown sugar, firmly packed
4. 1/2 cup molasses
5. zest of 1 orange, divided in 2 (will be about 1 Tbsp total)
6. juice of 1 orange (will be used in both bars and icing)
7. 3 teaspoons ground ginger
8. 2 teaspoons cinnamon
9. 1 teaspoon ground cloves
10. 1 teaspoon ground nutmeg
11. 1 1/4 cups unbleached all-purpose flour
12. 1 teaspoon unsalted butter, melted
13. 1 cup powdered sugar
14. Preheat the oven to 350ºF. Coat an 8x8 baking dish with cooking spray and set aside.
15. In a large bowl, whisk together butter, egg, brown sugar, molasses, half of orange zest (about 1.5 tsp), 1 Tbsp of the fresh orange juice, ginger, cinnamon, cloves, and nutmeg until smooth.
16. Add the flour and stir until just combined, don't over mix.
17. Pour the batter into the prepared pan and smooth the top. Bake 32-34 minutes or until a toothpick inserted in the center comes out clean or with moist crumbs clinging. Allow the bars to cool while you prepare the icing.
18. In a small bowl, combine melted butter, powdered sugar and rest of orange zest. Add orange juice (you will only need about 1 Tbsp plus 1 tsp) a little at a time until it reaches a smooth, pourable consistency. Pour evenly over cooled bars. Cut and serve.