Preheat oven to 425F. Line a baking sheet with parchment paper and set aside.
In a large bowl, combine flour, baking powder, baking soda, salt, and sugar. Cut in butter with a pastry cutter or a fork until mixture is crumbly. Mix in greek yogurt, egg, eggnog, and vanilla until mixture forms a shaggy dough. Gently mix in raspberries.
Turn dough onto a floured surface and gently knead a few times until dough comes together. Divide dough in half and pat each half into an 4-in round circle. Using a sharp knife, cut each circle into 8 wedges. Place wedges 1-in apart on prepared baking sheet.
Bake scones at 425F 10-12 minutes or until scones are golden-brown. Cool scones on a cooling rack a few minutes.
Make the glaze: In a small bowl, whisk glaze ingredients until smooth. Drizzle glaze over scones and let set 5 minutes. Enjoy!