Combine first 4 ingredients in a large bowl; cut in butter with a pastry blender until crumbly.
Whisk together half-and-half and 1 egg in a bowl; add to dry ingredients, stirring with a fork just until dry ingredients are moistened. Turn dough out onto a lightly floured surface, and knead 3 or 4 times.
Divide dough in half; shape each into a ball. Pat each into a 5 1/2" circle on a lightly greased baking sheet. Cut each circle into 6 wedges, using a sharp knife (do not separate wedges).
Whisk together remaining egg with 1 teaspoon water in a small bowl; brush egg wash over dough. Sprinkle 1 tablespoon sugar evenly over dough.
Bake at 425° for 19 to 21 minutes or until golden. Serve warm. Serve with Pink Princess Spread, if desired.