Preheat oven to 400 degrees. Throughly wash and dry your hands or use disposable gloves.
Put flour, butter and sour cream into a large mixing bowl. Using you hand incorporate the butter and sour cream into the flour. Form a well in the center of the flour mixture and pour in 1/2 cup milk. Using a fork, stir milk into flour making sure all the flour is moistened and forms a dough ball. If it doesn't seem moist enough, add remaining milk. Make sure you don't get the dough too wet.
Pour dough onto a lightly floured surface and kneed dough until soft and fluffy feeling. Using a rolling pin, roll out dough to 1/2 inch. Using a biscuit cutter, cut out biscuits and place on buttered baking pan.