Berry Shortcakes with Whipped Cream Cheese

INGREDIENTS

• Nonstick cooking spray
• 1 1/2 cups all-purpose flour
• 2 tablespoons granulated sugar
• 3/4 teaspoon coarse salt
• 1 3/4 teaspoons baking powder
• 1/4 teaspoon baking soda
• 1 stick cold unsalted butter, cut into small pieces
• 8 ounces cream cheese, 2 ounces cold, 6 ounces room temperature
• 2 ounces blueberries (about 1/3 cup), plus more for serving
• 2 ounces strawberries, hulled and diced (about 1/3 cup), plus more for serving
• 3/4 cup well-shaken buttermilk
• 1/3 cup confectioner's sugar, plus more for serving
• 1 1/4 cups heavy cream