Boston Cream Cupcakes - dgratis.info

Ingredients

• 1 2/3 cups all-purpose flour
• 1 cup granulated sugar
• 1/4 tsp baking soda
• 1 tsp baking powder
• 3/4 cup unsalted butter, at room temperature
• 3 large egg whites
• 2 tsp pure vanilla extract
• 1/2 cup sour cream
• 1/2 cup whole milk
• 1 cup heavy cream
• 2 large egg yolks
• 3 tbsp granulated sugar
• 1 tbsp cornstarch
• 1 tsp pure vanilla extract
• 1/2 cup heavy cream
• 6 oz semi-sweet chocolate, chopped (for a smoother ganache)