Step #3 Whisk together dry ingredients in a medium bowl.
Step #4 Using any method you prefer, cut the cold butter into the dry ingredients until flour resembles coarse meal, or use the following tip:.
Step #5 The "grate" method: I grate a block of cold butter against the large holes of a box grater & weigh the butter ribbons to get the amount I need (1 TBL butter = 14 grams, so 5 TBL = 70 grams).
Step #6 Toss the butter ribbons with the flour mixture, & then use two knives to cut the flour-coated ribbons into 1/4-inch pieces.
Step #7 In a separate bowl, whisk together the sour cream, egg yolk & vanilla extract until mixed.
Step #8 Add this to the flour-butter mixture & stir with a fork until dough forms a cohesive ball.
Step #9 Use a spatula to get the dry bits fully incorporated.
Step #10 (It may not seem to have enough liquid at first, but the dough will eventually come together.
Step #11 ).
Step #12 Place the sticky dough onto a parchment-lined (or ungreased) baking sheet & pat into a disk about 1-inch in height.
Step #13 Cut the dough into wedges but do not separate.
Step #14 Or scoop dough into a mini scone pan if available.
Step #15 (Yield will vary depending on how big you slice the wedges.
Step #16 ).
Step #17 Bake for 15 mins or until golden brown on top.
Step #18 PREPARE GLAZE WHILE SCONES ARE BAKING.
Step #19 GLAZE:.
Step #20 Place powdered sugar in a medium bowl, & add water one tsp at a time, mixing vigorously until smooth & runny.
Step #21 Use a pastry brush to apply a thin layer of glaze over the hot scones.
Step #22 Brushing rather than drizzling gives a smoother appearance & requires less glaze.
Step #23 Serve as soon as possible.
Step #24 Store cooled scones in an airtight container.
Enjoy the Mini Vanilla Scones (Like Starbucks) recipe