Blueberry Scones

Name: Blueberry Scones
Prep time: 20 min
Cook time: 18 min
Total time: 38 min
Cuisine: American, British
Ingredients: 2 cups all-purpose flour (plain flour (256g)); 1/3 cup of white granulated sugar (68g); 1 tsp. of baking powder (5g); 1/4 tsp. of baking soda (1g); 1/2 tsp. of salt (table salt (2g)); 1/2 cup or 8 Tbsp. of unsalted butter (115g); 1 cup of blueberries (100g); 1/2 cup of sour cream or buttermilk (115g); 1 large egg zest from one lemon (optional); 1 1/3 cup of powdered sugar (165g); 2 Tbsp. of melted unsalted butter (28g); 1/4 cup lemon juice (60mL)