3/4 cup (packed) chopped pitted dates
3/4 cup milk (2 percent low-fat is fine)
2 large eggs
1 cup (packed) dark brown sugar
1/2 cup vegetable oil or melted butter
1 teaspoon pure orange extract
1 teaspoon grated orange zest
2 cups unbleached all-purpose flour
2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup confectioners' (powdered) sugar
2 tablespoons butter (softened)
1 teaspoon pure orange extract
1 teaspoon grated orange zest
2 teaspoons milk