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How to Make Delicious Boston Cream Cupcakes

Boston Cream Cupcakes are a delightful twist on the classic Boston Cream Pie. These cupcakes feature a rich custard filling, topped with a luscious chocolate ganache. Here’s a step-by-step guide to making these delicious treats from scratch:

Ingredients

For the Cupcakes:

  • 1 1/2 cups all-purpose flour
  • 1 1/2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 1/2 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1/2 cup milk

For the Custard Filling:

  • 1 cup whole milk
  • 3 large egg yolks
  • 1/3 cup granulated sugar
  • 2 tablespoons cornstarch
  • 1 teaspoon vanilla extract

For the Chocolate Ganache:

  • 1 cup semi-sweet chocolate chips
  • 1/2 cup heavy cream

Instructions

1. Prepare the Cupcakes:

  • Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners.
  • In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
  • In a large bowl, cream together the softened butter and granulated sugar until light and fluffy.
  • Beat in the eggs one at a time, mixing well after each addition.
  • Add the vanilla extract and mix until combined.
  • Gradually add the dry ingredients to the butter mixture, alternating with the milk, beginning and ending with the dry ingredients. Mix until just combined.
  • Divide the batter evenly among the muffin cups, filling each about two-thirds full.
  • Bake in the preheated oven for 18-20 minutes, or until a toothpick inserted into the center comes out clean.
  • Allow the cupcakes to cool completely on a wire rack before filling and frosting.

2. Make the Custard Filling:

  • In a medium saucepan, heat the milk over medium heat until it begins to steam, but do not let it boil.
  • In a separate bowl, whisk together the egg yolks, granulated sugar, and cornstarch until well combined.
  • Slowly pour the hot milk into the egg mixture, whisking constantly to temper the eggs.
  • Return the mixture to the saucepan and cook over medium heat, stirring constantly, until it thickens and comes to a gentle boil. This should take about 2-3 minutes.
  • Remove from heat and stir in the vanilla extract.
  • Transfer the custard to a bowl, cover with plastic wrap (press the wrap directly onto the surface of the custard to prevent a skin from forming), and refrigerate until completely chilled and set.

3. Prepare the Chocolate Ganache:

  • In a small saucepan, heat the heavy cream over medium heat until it begins to simmer.
  • Remove from heat and add the chocolate chips. Let sit for 1-2 minutes to allow the chocolate to melt.
  • Stir until the ganache is smooth and glossy. Allow it to cool slightly before using.

4. Assemble the Cupcakes:

  • Once the cupcakes are completely cooled, use a small knife or cupcake corer to cut a small hole in the center of each cupcake.
  • Spoon or pipe the chilled custard filling into the hole, filling it generously.
  • Spoon or pipe the chocolate ganache over the top of each cupcake, spreading it to cover the custard and create a smooth finish.

5. Serve and Enjoy:

  • Allow the ganache to set before serving. This will take about 30 minutes at room temperature or can be sped up by placing the cupcakes in the refrigerator.
  • Garnish with additional chocolate shavings or a sprinkle of powdered sugar if desired.

Tips for Perfect Boston Cream Cupcakes

  • Chill the Custard: Ensure the custard is completely chilled before filling the cupcakes. This helps it maintain its texture and makes filling easier.
  • Ganache Consistency: If the ganache becomes too thick as it cools, gently reheat it over a double boiler or in the microwave in short bursts to loosen it up before applying.
  • Cupcake Storage: Store the filled and frosted cupcakes in an airtight container in the refrigerator. They are best enjoyed within 2-3 days.

These Boston Cream Cupcakes are a delightful treat that brings together a soft, buttery cupcake, a creamy custard filling, and a rich chocolate ganache. Perfect for special occasions or just a sweet indulgence, these cupcakes are sure to impress with their classic flavors and elegant presentation. Enjoy the blend of textures and flavors in every bite of this delicious dessert!