Heat oven to 425ºF. Grease 8 regular-size muffin cups. In large bowl, mix flour, 2 tablespoons granulated sugar, the baking powder and salt. Cut in firm butter using pastry blender (or pulling 2 table knives through ingredients in opposite directions), until mixture particles resemble fine crumbs. Stir in just enough milk so dough leaves side of bowl and forms a ball.