Step 1

Make the shortcakes: Lightly grease a large, rimmed baking sheet or line it with parchment paper.

Step 2

In a large bowl, whisk together the flour, cornstarch, sugar, baking powder, baking soda and salt. Using the holes of a large grater, grate the butter into the dry ingredients. Use your fingers to gently toss the butter with the dry ingredients until clumps the size of small peas form. This should take no more than 30 seconds. Once mixed, if your kitchen is warm, place the bowl in the freezer while you prepare the liquid ingredients.

Step 3

In a liquid measuring cup, whisk together the buttermilk and egg until well combined. Reserve 2 tablespoons of this mixture for brushing on top of the shortcakes. Stir the remainder into the butter-flour mixture, mixing gently with your hands just until a soft dough forms.

Step 4

Lightly flour a cool work surface and turn the dough out onto it. Press the dough into a rough 1-inch-thick rectangle. Starting on a short end and using a pastry cutter to help you, fold it into thirds, like a letter. Rotate the dough so the long side is facing you and gently press it into a rough, 3/4-inch thick rectangle about 9-by-6-inches. Using a floured 2 1/2- or 3-inch diameter cutter or thin glass, cut 6 rounds out of the dough. Gently place them, evenly spaced, on the prepared baking sheet. (You can press and reroll the dough to get 2 more shortcakes, but these will be somewhat less tender.) Brush just the tops with the reserved egg-buttermilk mixture, and place them in the freezer for 10 to 15 minutes, while you preheat your oven.

Step 5

Position a rack in the middle of the oven and preheat to 450 degrees.

Step 6

Prepare the fruit: While the oven preheats, in a large bowl, combine the peaches with the honey and raspberries and gently stir. Set aside at room temperature to allow the fruit juices to start to run.

Step 7

Bake the shortcakes for 10 minutes, then rotate the pan and bake for another 10 minutes, or until they’re tall and light gold brown. Cool for at least 15 minutes, or until barely warm to the touch.

Step 8

Make the vanilla whipped cream: In the bowl of a stand mixer, or using a bowl and a hand mixer or whisk, combine the heavy cream, confectioners’ sugar and vanilla. Whip on medium-high speed until soft-but-stable peaks form.

Step 9

To serve, using a small serrated knife, split each shortcake in half through its equator and place the bottom half on a plate. Top it with about 4 slices of the saucy peaches and raspberries. Add 3 to 4 tablespoons of the whipped cream. Cap it with the top of the shortcake. Repeat with the remaining shortcakes and fruit, and serve, with any extra fruit and cream on the side.