Measure out ¼ cup of sugar and remove 1 tbsp. Mix strawberries with 1 tbsp of sugar and set aside.
In a large bowl, mix all the dry ingredients including the remaining sugar.
Using the large holes of a cheese grater, grate the frozen butter into the flour.
Mix well with flour.
In a medium bowl, mix the buttermilk, vanilla.
Using a fork, slowly stir in the wet ingredients to the dry ingredients, until all the mixture is moistened. Do not over work the dough.
Fold in the strawberries.
Line a cookie sheet with a silicone sheet or parchment paper.
Drop 8 equal large spoonfuls onto the cookie sheet (to avoid tough scones, do not press or compact). Sprinkle with one teaspoon of sugar. Bake in the center rack 18 minutes.
Remove and let them cool about 5 minutes before eating.
Optional: drizzle with glaze if desired by mixing powdered sugar and milk, see https://www.skinnytaste.com/delightful-apple-spiced-scones-with/ for recipe.