Ingredients:
- * 8 oz (1 cup) unsalted butter, softened; more for the pan
- * 12 oz (scant 3 cup) unbleached cake flour
- * 2-1/2 tsp baking powder
- * 3/4 tsp desk salt
- * 1-1/2 cup granulated sugar
- * 1 tb finely grated orange zest
- * 1 tsp finely grated lemon zest (from 1 lemon)
- * 3 broad egg
- * 1/4 tsp pure vanilla extract
- * 1/2 cup milk
- * 1/3 cup unique orange juice
- * 1/4 cup unique orange juice
- * 1/4 cup packed darkish brown sugar
- * 1 tb orange marmalade