Orange scones with a light orange flavor and tender crust.

Ingredients

• 1 ½ cups all-purpose flour
• ¼ cup sugar (plus 1 teaspoon, divided)
• 1 teaspoon baking powder
• 1/4 teaspoons salt
• 1/4 teaspoon baking soda
• 1/3 cup currants (optional)
• 2 tablespoons orange zest (freshly grated)
• 6 tablespoons butter (cold, cut into small pieces)
• 1/2 cup buttermilk (plain yogurt, or sour cream)