4 cups flour
1 teaspoon baking soda
1 teaspoon salt
1 tablespoon butter or margarine
1 1/4 cups buttermilk (or soured milk)
Combine the dry ingredients. Rub in the butter. (Note: some of the recipes I looked at omitted this ingredient.) Stir in the buttermilk and mix until combined. Knead lightly and form into a ball on a greased cookie sheet. Pat into a circle about 1 1/2" thick. Score the top in an X shape. Bake at 425° for 30 minutes. Cut into wedges to serve. (And use lots of butter and jam if you want.)
Note: You can cut the recipe in half, or even in quarters, and bake the bread as individual rolls, and they still turn out nicely.