· 2 cups/255 grams all-purpose flour, plus more for dusting the work surface· 1/2 cup/100 grams granulated sugar· 1 tablespoon baking powder· 3/4 teaspoon kosher salt· 1/2 cup/115 grams cold unsalted butter (1 stick)· 1 cup frozen cherries (halved), peaches (in bite-size pieces) or berries· 1/2 cup/120 milliliters sour cream or plain full-fat Greek yogurt· 1/4 cup/60 milliliters milk (preferably whole, but whatever you have is OK)· 1 large egg, beaten
Step 1Heat oven to 400 degrees with a rack in the upper third. Line a baking sheet with parchment paper.Step 2Whisk flour, sugar, baking powder and salt in a large bowl. Using the large holes of a box grater, grate butter directly into the dry ingredients, stopping a few times along the way to toss the butter pieces into the flour. Use your fingers to work the butter into slightly smaller pieces. Add cherries and toss to combine.Step 3In a small bowl, whisk together sour cream and milk. Add to the flour mixture, and use a fork to stir until all the dry flour bits are incorporated, but the dough is still shaggy. Smoosh and knead the dough a few times until it barely holds together, then dump the dough out onto a lightly floured work surface.Step 4Pat dough to a 1-inch-thick rectangle. Cut into 8 squares, transfer to the prepared sheet, and brush the tops with beaten egg.Step 5Bake until golden brown, 18 to 22 minutes. Let cool slightly. Scones will keep, covered at room temperature, for 3 days. Reheat, if you like, in a toaster oven or at 350 degrees until warmed through.