Description
Classic Boston Cream Pie featuring light and fluffy sponge cake layered with rich vanilla pastry cream and topped with a smooth chocolate ganache. This elegant dessert is perfect for special occasions or indulgent treats, combining creamy textures with a balanced sweetness and a shiny chocolate finish.
Ingredients
Scale
Pastry Cream
- ½ cup granulated sugar
- ¼ cup cornstarch
- 2 cups whole milk
- 4 large egg yolks
- 3 tablespoons unsalted butter, sliced
- 2 teaspoons pure vanilla extract
Sponge Cake
- 2 cups all-purpose flour, spooned and leveled
- 2 teaspoons baking powder
- ½ teaspoon salt
- ½ cup unsalted butter, sliced and at room temperature
- 1 cup whole milk
- 4 large eggs, at room temperature
- 2 cups granulated sugar
- 2 tablespoons vegetable or canola oil
- 2 teaspoons pure vanilla extract
Chocolate Ganache
- 4 ounces semi-sweet chocolate, chopped
- 1 tablespoon light corn syrup (optional, for shine)
- ½ cup heavy whipping cream
Instructions
- Prepare the Pastry Cream: In a large saucepan, whisk together sugar and cornstarch. In a separate bowl, whisk the milk and egg yolks until combined, then slowly pour into the saucepan, whisking continuously. Cook over medium heat, stirring often, until the mixture boils and thickens, about 1 minute. Remove from heat and stir in butter one tablespoon at a time and vanilla extract. Strain through a fine-mesh sieve into a heatproof bowl, cover with plastic wrap pressed onto the surface to prevent a skin, and refrigerate for at least 2 hours until chilled.
- Prepare the Sponge Cake: Preheat oven to 350°F (180°C). Grease and line two 9-inch cake pans with parchment paper. Sift together flour, baking powder, and salt; set aside. Heat butter and milk in a saucepan until simmering, then remove from heat. In a separate bowl, beat eggs and sugar until light and fluffy, about 5 minutes. Mix in oil and vanilla extract. Gently fold in the dry ingredients, then slowly fold in the warm milk and butter mixture until combined. Divide batter evenly between pans and bake for 25-30 minutes or until a toothpick comes out clean. Cool cakes in pans for 20-30 minutes, then remove and cool completely.
- Assemble the Cake: Once pastry cream is chilled, whisk until smooth. Level cake layers if needed. Place one layer on a cake stand, spread pastry cream evenly leaving a 1-inch border. Place the second cake layer upside-down on top and press gently. Refrigerate while preparing ganache.
- Prepare the Chocolate Ganache: Place chopped chocolate and corn syrup in a bowl. Heat heavy cream in microwave for 45-60 seconds until hot. Pour over chocolate and let sit for 2 minutes, then stir until smooth. Allow ganache to cool 15-20 minutes until thick but pourable.
- Finish the Cake: Remove cake from fridge and pour ganache over the top, spreading evenly. Refrigerate for 1-2 hours before slicing and serving.
Notes
- Press plastic wrap directly on pastry cream to prevent skin from forming.
- Use room temperature ingredients for best batter consistency and rise.
- Let ganache cool to a thick but pourable consistency for easier glazing.
- Lightly oil or butter cake pans and use parchment paper to prevent sticking and ensure easy removal.
- Refrigerate the assembled cake to let flavors meld and to firm up the layers before serving.
