Preheat oven to 400F and line a baking sheet with parchment paper.
Mix flour, rolled oats, brown sugar, baking powder and salt together in a large mixing bowl.
Grate frozen butter using the large side of a cheese grater and add to the mixing bowl. Mix in the butter and chocolate chips.
In a separate bowl whisk together the egg, milk, and vanilla. Pour wet ingredients into dry and mix until just combined, do not over mix because you will melt the butter
Dust a clean surface with flour and use floured hands to shape the dough into an 8” x 12” rectangle. Cut this rectangle into 12 triangles and arrange them on the baking sheet with a bit of space between each
Sprinkle the tops of each scone with turbinado sugar and bake at 400F for 16-18 minutes. Cool completely and enjoy!
Notes
Use a 1:1 gluten free flour blend in place of all purpose flour to make these gluten free