2 c flour 
1/4 c sugar
2 tsp baking powder 
1/2 tsp salt
6 Tbs chilled butter 
1/2 c dried cranberries
2 tsp grated lemon peel 
2/3 c buttermilk
2 tsp milk 
1 tsp sugar

Combine the flour, 1/4 cup sugar, baking powder and salt. Cut in the butter until crumbly. Stir in the dried cranberries and lemon peel. Pour in the buttermilk and stir with a fork until the mixture holds together. Gather the soft dough into a ball and gently knead a few times on a flour surface. Pat out dough to an 8-inch circle and cut into 8 wedges. Place 2 inches apart on a greased baking sheet and brush the tops with the milk. Sprinkle with 1 teaspoon sugar. Bake in a preheated 425-degree oven 15-20 minutes, until golden. Serve warm.
 

Source: http://www.nancys-kitchen.com