Combine dry ingredients and Chives in mixing bowl. Cut in margarine with dough blender until margarine is in small pea size pieces. Add the milk and sour cream until liquid and flour are evenly combined. On a floured surface knead the dough and repeatedly fold and flatten by hand for 2 to 3 minutes. Cut biscuits out of dough approximately ½ inch thick. Place on baking sheet and bake for 9 to 10 minutes in preheated 450 degree oven. Makes 12 to 18 biscuits depending on size of biscuit cutter.
Note: For a lighter taste substitute fresh dill for chives.