Scone Coklat

Bahan-bahan (6 porsi)

• 2 cups all-purpose flour
• ½ cup granulated sugar
• ⅓ cup unsweetened cocoa powder
• 1 teaspoon instant espresso powder
• 2 teaspoons baking powder
• ½ teaspoon salt
• ½ cup unsalted butter (chilled)
• ⅔ cup heavy cream (chilled)
• 1 large egg
• 1 teaspoon vanilla extract
• ⅓ cup chocolate chips
• 3 tablespoons heavy cream