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Irresistible Boston Cream Cupcakes
Boston Cream Cupcakes are a handheld twist on the classic Boston Cream Pie, featuring soft vanilla cupcakes filled with luscious pastry cream and topped with glossy chocolate ganache. Perfect for birthdays, parties, or simply treating yourself, these indulgent treats are easy to make and guaranteed to impress!
- Prep Time: 30min
- Cook Time: 25min
- Total Time: 1 hour 20 minutes
- Yield: 12 cupcakes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
For the Cupcakes:
- 1 ½ cups (190g) all-purpose flour
- 1 ½ tsp baking powder
- ¼ tsp salt
- ½ cup (113g) unsalted butter, softened
- 1 cup (200g) granulated sugar
- 2 large eggs
- 2 tsp vanilla extract
- ½ cup (120ml) whole milk
For the Pastry Cream Filling:
- 1 cup (240ml) whole milk
- ¼ cup (50g) granulated sugar
- 2 egg yolks
- 1 tbsp cornstarch
- 1 tsp vanilla extract
- ½ tbsp unsalted butter
For the Chocolate Ganache:
- ½ cup (120ml) heavy cream
- 4 oz (115g) semi-sweet chocolate, chopped
- 1 tbsp unsalted butter
For the Optional Vanilla Buttercream:
- ½ cup (113g) unsalted butter, softened
- 2 cups (240g) powdered sugar
- 1 tsp vanilla extract
- 2 tbsp heavy cream or milk
Instructions
For the Cupcakes:
- Preheat oven to 350°F (175°C) and line a cupcake pan with liners.
- In a medium bowl, whisk together the flour, baking powder, and salt.
- In a large bowl, beat the butter and sugar until light and fluffy (about 2–3 minutes).
- Add eggs one at a time, beating well after each addition. Stir in vanilla extract.
- Alternately add the dry ingredients and milk, beginning and ending with the dry ingredients. Mix until just combined.
- Divide the batter evenly among cupcake liners, filling each about ⅔ full.
- Bake for 18–20 minutes or until a toothpick inserted into the center comes out clean.
- Let cupcakes cool completely before filling.
For the Pastry Cream Filling:
- Heat the milk in a small saucepan over medium heat until steaming (not boiling).
- In a separate bowl, whisk together egg yolks, sugar, and cornstarch until smooth.
- Slowly pour half of the hot milk into the egg mixture, whisking constantly to prevent curdling.
- Return mixture to the saucepan and cook over medium heat, whisking constantly, until thickened (about 2 minutes).
- Remove from heat and stir in vanilla extract and butter. Let cool completely.
For the Chocolate Ganache:
- Heat the heavy cream in a saucepan or microwave until hot (not boiling).
- Pour over the chopped chocolate and let sit for 2 minutes, then stir until smooth.
- Stir in the butter for extra shine. Let cool slightly before using.
Assembly:
- Fill the Cupcakes: Use a knife or piping tip to hollow out the center of each cupcake. Pipe or spoon the cooled pastry cream inside.
- Top with Ganache: Spoon or dip each cupcake into the chocolate ganache, letting the excess drip off.
- Optional Buttercream: Pipe a swirl of vanilla buttercream over the ganache for an extra decorative touch.
Notes
- Storage: Keep cupcakes in an airtight container in the refrigerator for up to 3 days.
- Freezing: Freeze unfrosted cupcakes for up to 2 months. Thaw before filling and topping.
- Serving: These cupcakes taste best chilled or at room temperature.