In a large bowl combine the fruit, sugar and gin. Marinate at room temperature for 1 hour.

Preheat the oven to 400 degrees F.

Into a large bowl, sift the flour, cocoa, sugar, baking powder, baking soda, and salt. Add the butter to the dry ingredients, and mix well with fingertips or a pastry blender to incorporate and the mixture resembles coarse crumbs. Add the egg and milk, and mix just until the mixture comes together to form a sticky dough.

Line a baking sheet with parchment paper. Drop the batter onto the sheet in 1/4-cup dollops, leaving 2 inches of space between each, and gently smooth with the back of a spoon. Bake until a tester inserted into the middle comes out clean, 12 to 15 minutes.

In a medium bowl, whip the cream to soft peaks. Add the sugar and gin and whip until stiff peaks form. Keep cold until ready to use.

Transfer the cakes to wire racks to cool. Carefully split the shortcakes horizontally and place the bottom half on each of 6 dessert plates. Top with a heaping tablespoon of berries and cream, then top with the remaining shortcake halves. Top with the remaining berries and cream, and garnish by sifting powdered sugar over each serving. Serve immediately.