• Preheat oven to 425℉. Gather the ingredients so you have everything close at hand on the counter or table. Line baking sheet with parchment paper or a silicone baking mat.
• In a small bowl, toss 1 1/2 cups frozen mixed berries with 3 tablespoons powdered sugar.

Prepare the Dough

• In a medium bowl, stir together 3 cups all-purpose flour, 1/3 cup granulated sugar, 1 tablespoon baking powder, and 1/2 teaspoon salt.
• Using a pastry fork or your fingers, cut in 1 stick butter (slivered) until mixture is crumbly.
• Make a well in the middle of the bowl, and pour in 1/2 cup whole milk and 1 large egg, whisking to blend. Mix into flour mixture until just combined.
• Add berries and gently fold in to combine.

Form the Scones

• Turn dough onto floured counter and knead 3-4 times. Pat into a circle about 1 inch thick. Form scones, by slicing in half, repeating in halves, until you have 8-12 scones.
• Place scones on the prepared baking sheet(s). Sprinkle with 3 tablespoons Decorating sugar.
• Bake in preheated oven for 18-20 minutes until golden brown. Serve warm with tea or coffee. Serves 8-12.