This Boston Cream Pie is a classic cake – not a pie at all! It’s a lovely vanilla cake layered with fresh pastry cream and chocolate ganache – all from scratch!


  1. 4 egg yolks
  2. 3/4 cup (155g) sugar
  3. 4 tbsp cornstarch
  4. 2 cups (480ml) milk
  5. 2 tbsp (14g) salted Challenge Butter
  6. 2 tsp vanilla extract

  1. 2 1/2 cups (325g) all purpose flour
  2. 3 1/2 tsp baking powder
  3. 1/2 tsp salt
  4. 3/4 cup (168g) unsalted Challenge Butter, room temperature
  5. 1 1/2 cups (310g) sugar
  6. 3 tbsp vegetable oil
  7. 1 tbsp vanilla extract
  8. 4 large eggs
  9. 1 1/4 cups (300ml) milk

  1. 6 oz (1 cup) semi-sweet chocolate chips
  2. 2 tbsp corn syrup
  3. 1/2 cup (120ml) heavy whipping cream

  • To make the pastry cream, put the egg yolks in a medium sized bowl and gently beat them together. Set aside.
  • Add the sugar, cornstarch and milk to a large saucepan and mix until smooth.
  • Cook, stirring continuously, over medium heat until mixture begins to thicken and bubble.
  • Simmer for 2 minutes, then remove from heat.
  • Add a little bit of milk mixture to the egg yolks and whisk together, then add egg mixture to milk mixture. This process ensures that you don’t cook the egg yolks too quickly.
  • Place everything back in the pan and the pan back on the heat and bring to a light boil. Allow to boil for 2 minutes, stirring continuously.
  • Remove from heat and add the butter and vanilla extract. Stir until smooth, then pour into a bowl and cover with clear wrap pressed against the top so that it doesn’t get a film on top and set in the fridge to cool completely.
  • To make the cake layers, prepare two 9 inch cake pans with parchment paper circles in the bottom and grease the sides. Preheat oven to 350°F (176°C).
  • Combine the flour, baking powder and salt in a medium sized bowl and set aside.
  • Add the butter, sugar and oil to and large mixer bowl and beat together until light in color and fluffy, about 3-4 minutes. Do not skimp on the creaming time.
  • Add the eggs and vanilla extract and mix until completely combined and smooth. Scrape down the sides of the bowl as needed to be sure all ingredients are well incorporated.
  • Add half of the dry ingredients to the batter and mix until mostly combined.