1Heat oven to 400°F. Generously spray cookie sheet with cooking spray.
2In large bowl, mix Bisquick mix and 1/3 cup granulated sugar. Cut in butter, using pastry blender (or pulling 2 table knives through ingredients in opposite directions), until mixture looks like coarse crumbs. In small bowl, mix egg, yogurt and 1/4 cup whipping cream. Stir into crumb mixture just until combined. Stir in lemon peel and rosemary.
3Place dough on cookie sheet; using greased hands, pat dough into 8-inch round. Brush dough with 1 tablespoon whipping cream; sprinkle with 1 tablespoon granulated sugar. Cut into 8 wedges with sharp knife dipped in additional Bisquick mix, but do not separate into wedges.
4Bake 15 to 20 minutes or until light golden brown. Carefully cut into wedges and immediately remove from cookie sheet to cooling rack. Cool 5 minutes. Meanwhile, in small bowl, mix powdered sugar and lemon juice. Drizzle over scones. Serve warm.