Sourdough Scones
["1 3/4 c. all-purpose flour", "1/4 c. whole wheat flour", "4 Tbsp. sugar, divided", "2 tsp. baking powder", "1/4 tsp. baking soda", "grated peel of 1 orange", "2 tsp. grated lemon peel", "1/3 c. currants (raisins work fine)", "1/2 c. cold butter, cut into small pieces", "3/4 c. sourdough starter"]
["In a medium bowl, combine the flours, 3 tablespoons sugar, baking powder, soda, orange peel, lemon peel and currants.", "With a pastry blender, work in the butter until fine crumbs are formed. Add the sourdough starter; stir with a fork until dough holds together.", "Form the dough into a ball and knead briefly, only until ingredients are combined.", "Cut the dough into two equal parts; shape each half into a ball.", "Flatten into a 5-inch circle, leaving dough slightly higher in the center.", "Cut each circle into 6 wedges.", "Sprinkle scones with remaining tablespoon of sugar.", "Place them on ungreased baking sheet; bake in the middle of a preheated 375\u00b0 oven for 25 to 30 minutes."]
["flour", "whole wheat flour", "sugar", "baking powder", "baking soda", "orange", "currants", "cold butter", "sourdough starter"]