1. Preheat and Prep:

• Preheat your oven to 400°F (200°C).
• Line a large baking sheet with parchment paper or a silicone baking mat and set aside.

2. Combine Dry Ingredients:

• In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, and baking powder until fully combined.

3. Cut in the Butter:

• Add the cold, cubed butter to the flour mixture.
• Use a pastry cutter or fork to cut the butter into the dry ingredients until the mixture resembles coarse crumbs with pea-sized butter chunks. Be careful not to overmix.

4. Mix Wet Ingredients:

• In a separate mixing bowl, whisk together the heavy whipping cream, egg, and vanilla extract until well combined.

5. Combine Wet and Dry Ingredients:

• Pour the wet ingredients into the dry mixture and gently stir until just combined. Avoid over-mixing the dough, as it can become tough.

6. Shape the Dough:

• Transfer the dough onto a lightly floured surface. Shape the dough into a ball and flatten it into a 7-inch disc (18cm) that’s about 1-inch thick.
• Using a sharp knife or a bench scraper, cut the dough into 8 equal-sized wedges.

7. Chill the Dough:

• Place the scone wedges onto the prepared baking sheet, making sure they have a bit of space between them.
• Pop the entire baking sheet into the freezer for 5-10 minutes to chill the dough. This helps the scones rise properly and stay flakey.

8. Brush and Bake:

• Remove the scones from the freezer and brush the tops with a little extra heavy whipping cream.
• Bake in the preheated oven for 15-18 minutes, or until the tops of the scones are lightly golden and the centers are cooked through.

9. Cool the Scones:

• Remove from the oven and allow the scones to cool completely on a wire rack.

10. Make the Glaze:

• In a medium-sized mixing bowl, whisk together the powdered sugar, milk, and vanilla extract until smooth.
• If the glaze is too thick, add more milk a teaspoon at a time; if it’s too thin, add more powdered sugar.

11. Glaze and Serve:

• Drizzle the glaze over the cooled scones and let it set for 10-15 minutes.
• Serve and enjoy!