Heat oven to 450°F. In large bowl, mix flour, sugar, baking powder and salt. Cut in shortening, using pastry blender (or pulling 2 table knives through ingredients in opposite directions), until mixture looks like fine crumbs. Stir in milk until dough leaves side of bowl (dough will be soft and sticky).
On lightly floured surface, gently roll dough in flour to coat. Knead lightly 10 times. Roll or pat 1/2 inch thick. Cut with floured 2 1/2-inch biscuit cutter. On ungreased cookie sheet, place biscuits about 1 inch apart for crusty sides, touching for soft sides.
Bake 10 to 12 minutes or until golden brown. Immediately remove from cookie sheet to wire rack. Serve warm.