Boston Cream Cupcakes | Jenny Evans

Ingredients

• 10 Tbsp. unsalted butter, softened
• 2 c. sugar
• 4 Tbsp. vegetable oil
• 6 large eggs
• 3 tsp. vanilla extract
• 1 c. buttermilk
• 2 ½ c. flour
• ½ c. cornstarch
• 1 Tbsp. plus 1 Tsp. baking powder
• 1 tsp. salt
• 2 ¼ c. whole milk
• ¼ c. cornstarch
• ½ c. granulated sugar
• ¼ tsp. salt
• 5 egg yolks
• 1 Tbsp. unsalted butter
• 1 c. semi sweet chocolate chips
• ¾ c. heavy cream
• 1 Tbsp. corn syrup
• 1 Tbsp. unsalted butter, melted
• ½ tsp. vanilla extract