Mix flour and sugar. Cut in butter and cream cheese until coarse and crumbly. Add vanilla and buttermilk. Stir until well blended. Turn out on a floured surface, knead until easy to handle. Roll or pat to 1 inch thick circle. Cut with a 1 ½ inch biscuit cutter or to desired shape. Place on a greased cookie sheet. (Instead, I use parchment paper on a cookie sheet.) Brush tops with heavy cream or milk. Bake at 400 degrees 15 minutes until lightly brown on edges.
Serve with Clotted Cream (mock clotted cream in the USA), Strawberry Jam or Lemon Curd and enjoy!