Preheat the oven to 400 degrees Fahrenheit.
Line baking sheet with parchment paper.
Combine dry ingredients (flour, sugar, baking powder, and salt) in a large bowl.
Grate frozen butter into bowl of dry ingredients and stir to coat.
In a smaller bowl, combine 1/2 cup whipping cream, egg, and vanilla. Mix well.
Slowly pour wet ingredients into larger bowl of dry ingredients, mixing as you pour.
After mixing well, form dough into a circle on a floured surface.
Cut dough into wedges and place on baking pan.
Brush a thin coating of cream on top of each scone and sprinkle with coarse sugar.
Bake for 18-22 minutes.
Let cool and then enjoy!