Scone keping coklat

Bahan-bahan (8 porsi)

• 2 cups all purpose flour
• ½ cup gula pasir
• 2 teaspoon baking powder
• ½ teaspoon garam
• ½ cup mentega tawar dingin
• 1 cup mini chocolate chips
• ½ cup heavy cream chilled
• 1 large egg large
• 2 teaspoon ekstrak vanila
• 1/3 cup keping coklat
• 1 tablespoon minyak sayur