Directions:

Preheat oven to 425 degrees F

In a large bowl, combine flour, baking powder, soda and salt; cut in butter using a pastry blender or two knifes (in a scissor motion) until the mixture resembles coarse crumbs.

Stir in egg, yogurt and vanilla just until combined. Turn onto a floured surface; knead 6-8 times.

Roll into a 9-inch circle; cut into eight wedges. Place on an ungreased baking sheet. Brush tops with milk; sprinkle with sugar. Bake for 12 to 15 minutes or until golden brown.

Serve warm drizzled with glaze or plain.

Glaze:
In a small bowl, stir milk into powdered sugar. Add more milk (1 tbsp at a time), if needed to achieve desired consistency.