Preheat your oven to 375°F (190°C).
In a mixing bowl combine your dry ingredients. This includes granulated sugar, all-purpose flour, salt, and baking powder.
Next, we highly recommend using a box grater to grate your frozen butter. If you do not have a greater you can simply cut the butter into fine pieces. Add your butter to your dry ingredients.
Stir to combine or use a pastry cutter to mix together. Add heavy cream and vanilla. Gently fold the dough together until combined. You want to mix just until the dough begins to come together. Be careful to not overmix the dough.
Add your chocolate chips to your scone dough and gently need them together until you form a ball with chocolate chips throughout.
Divide your ball into two even balls. Gently pat it down and cut into approximately eight wedges for each ball of dough. Place your wedges evenly spaced on a lightly greased cookie sheet.
Before baking, take a bit of milk and brush the top of each stone with it. Sprinkle the top of your scone with granulated sugar or large sugar chunks.
Bake at 375°F for approximately 15 minutes, or until the bottom of your scones are light golden brown.
Allow the scones to cool before you add your toppings.
In a small mixing bowl prepare your glaze and set it aside. In a microwave-safe bowl, melt your chocolate chips by microwaving for 30 seconds then stir, repeating until your chocolate chips are melted. This typically takes between 1 minute and 1 minute 30 seconds. Add your glaze and chocolate drizzles on top of your scones, then serve and enjoy!