Step 1: Preheat the Oven
Preheat your oven to 400°F (200°C).
Line a baking sheet with parchment paper for easy cleanup.

Step 2: Mix the Dry Ingredients
In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, and salt.
This ensures even distribution of the leavening agents and flavor.

Step 3: Cut in the Butter
Add the cold, cubed butter to the flour mixture.
Using a pastry cutter or two forks, cut the butter into the flour until the mixture resembles coarse crumbs.
Small bits of butter help create those perfect flaky layers.

Step 4: Combine Wet Ingredients
In a separate bowl, whisk together the buttermilk, egg, and vanilla extract until smooth.

Step 5: Make the Dough
Pour the wet ingredients into the dry ingredients.
Stir gently with a spatula until the dough just comes together.
Do not overmix; it’s okay if the dough looks a little shaggy.

Step 6: Shape the Scones
Turn the dough out onto a lightly floured surface.
Gently pat it into a 1-inch thick round.
Using a sharp knife or bench scraper, cut the dough into 8 equal wedges.
Transfer the scones to the prepared baking sheet, spacing them slightly apart.

Step 7: Brush and Sprinkle
Brush the tops of the scones with heavy cream or milk.
Sprinkle with coarse sugar if desired for extra crunch and sweetness.

Step 8: Bake the Scones
Bake for 15-18 minutes, or until the scones are golden brown on top and cooked through.
Cool slightly on the baking sheet before serving warm.