1Heat oven to 400°F. In medium bowl, mix flour, oats, 3 tablespoons sugar, the baking powder, orange peel and salt. Cut in butter, using pastry blender or pulling 2 table knives through ingredients in opposite directions, until mixture looks like fine crumbs. Stir in egg and just enough half-and-half so dough leaves side of bowl.
2Place dough on lightly floured surface. Knead lightly 10 times. On ungreased cookie sheet, pat or roll into 7-inch circle, 1/2 inch thick. Cut into 6 wedges with sharp knife that has been dipped in flour, but do not separate wedges. Brush with orange juice; sprinkle with 1 tablespoon sugar.
3Bake 10 to 14 minutes or until golden brown. Immediately remove from cookie sheet; carefully separate wedges. Serve warm.