Combine dry ingredients; cut in butter till crumbly. Stir in whatever you like -- blueberries, cranberries, orange or lemon zest, candied ginger, chocolate chips, etc. Add milk and stir just until moistened. Turn out on floured board, flour hands and knead 10-15 times and pat/roll into 3/4" thick round shape. Cut into wedges and place on baking sheet (greased or parchment). Leave a little space in between as they poof up a bit. Bake at 400 deg F for 18-22 minutes (15-16 is enough in my oven). You can sprinkle with sugar before baking, or after baking can drizzle with powdered sugar glaze, etc. Very versatile!