Ingredients

  • 2 cups unbleached all-purpose flour
  • 13 cup sugar, plus
  • 2 tablespoons sugar
  • 1 teaspoon baking powder
  • 12 teaspoon baking soda
  • 12 teaspoon salt
  • 6 tablespoons chilled unsalted butter, diced
  • 1 teaspoon packed grated lemon, rind of
  • 34 cup miniature semisweet chocolate chips
  • 34 cup chilled buttermilk
  • 1 large egg yolk
  • 1 teaspoon vanilla extract
  • milk (for glaze)

Method

  • Butter and flour baking sheet.
  • Sift 2 cups flour, 1/3 cup sugar, baking powder, baking soda and salt into large bowl.
  • Add butter and lemon peel; rub in with fingertips until butter is reduced to size of rice grains.
  • Mix in chocolate chips.
  • Whisk buttermilk, egg yolk and vanilla in small bowl to blend.
  • Add buttermilk mixture to dry ingredients; mix until dough comes together in moist clumps.
  • Gather dough into ball.
  • Press dough out on lightly floured surface to 8-inch round; cut round into 6-8 wedges.
  • Transfer wedges to prepared baking sheet, spacing 1 inch apart.
  • (Can be prepared 1 day ahead.
  • Cover and refrigerate.)
  • Preheat oven to 400F.
  • Brush scones lightly with milk; sprinkle with remaining 2 tablespoons sugar.
  • Bake until scones are crusty on top and tester inserted into center comes out clean, about 20 minutes.
  • Serve warm.