Boston Cream Pie is a timeless dessert that combines soft, fluffy vanilla cake with creamy pastry filling and a rich chocolate ganache. Made entirely from scratch, this dessert is perfect for special occasions or an indulgent treat. Its layers of light cake, smooth pastry cream, and glossy ganache create a dessert that is both visually stunning and irresistibly delicious.

Ingredients
Pastry Cream
- 1 cup milk
- 1 cup heavy whipping cream
- 9 tablespoons granulated sugar, divided
- ¼ teaspoon salt
- 5 large egg yolks, room temperature
- 3 tablespoons cornstarch
- 1 ½ teaspoons vanilla extract
- 4 tablespoons unsalted butter, softened and cut into pieces
Cake
- ¼ cup unsalted butter, softened to room temperature
- ¼ cup vegetable oil
- ¾ cup granulated sugar
- 2 large eggs, room temperature
- ½ tablespoon vanilla extract
- 1 ½ cups all-purpose flour
- ½ tablespoon baking powder
- ¼ teaspoon salt
- ⅔ cup buttermilk, room temperature
Ganache
- 1 cup chocolate chips
- ½ cup heavy whipping cream
- 2 tablespoons corn syrup (optional)
Instructions
Pastry Cream
- Combine milk, cream, 6 tablespoons sugar, and salt in a saucepan over medium heat. Stir until sugar dissolves and mixture simmers, then remove from heat and cool 10 minutes.
- In a separate bowl, whisk egg yolks with remaining sugar. Add cornstarch and mix.
- Gradually whisk a small portion of warm cream into the egg mixture, then combine fully.
- Return mixture to saucepan and cook over medium heat, whisking constantly until thickened.
- Remove from heat, stir in vanilla and butter pieces until incorporated.
- Strain cream, cover with plastic wrap directly on surface, and chill at least 2 hours.
Cake
- Preheat oven to 350°F (175°C). Prepare two 9-inch round cake pans with parchment and greased sides.
- Cream butter, oil, and sugar until smooth. Add eggs one at a time, then stir in vanilla.
- Whisk together flour, baking powder, and salt. Alternately fold flour and buttermilk into butter mixture, starting and ending with flour.
- Divide batter evenly into pans and bake 15 minutes or until a toothpick comes out mostly clean. Cool 10-15 minutes in pans, then transfer to a rack.
Ganache & Assembly
- Combine chocolate and cream over low heat, stirring until smooth. Stir in corn syrup if desired and cool until slightly thickened.
- Place one cake layer on a serving tray, spread pastry cream evenly, then top with second cake layer.
- Pour ganache over the top and spread gently to create a drip effect. Chill 20 minutes to set before slicing.

Serving and Storage Tips
- Serve Boston Cream Pie chilled for the best texture and flavor.
- Use a sharp knife dipped in hot water to cut clean slices.
- Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Avoid freezing, as the pastry cream and ganache may separate and affect texture.
- Allow the cake to sit at room temperature for 10-15 minutes before serving to soften slightly.
Variations
1. Coffee-Flavored Pastry Cream
Add 1-2 teaspoons of instant espresso powder to the milk and cream while heating for a subtle coffee flavor. Perfect for coffee lovers who want a mocha twist.
2. Citrus Twist
Add 1 teaspoon of orange or lemon zest to the pastry cream for a bright, refreshing flavor. This pairs wonderfully with the chocolate ganache.
3. Caramel Ganache
Replace chocolate ganache with a homemade caramel sauce made from sugar, butter, and cream. Drizzle over the cake for a rich, buttery variation.
4. Chocolate Pastry Cream
Add 2-3 ounces of melted semi-sweet or dark chocolate to the pastry cream while it’s still warm. This creates a chocolate-filled Boston Cream Pie for chocolate enthusiasts.
5. Nutty Layer
Sprinkle finely chopped toasted almonds, hazelnuts, or pecans on top of the pastry cream before adding the second cake layer. Adds texture and a nutty flavor.
6. Berry Infusion
Spread a thin layer of raspberry or strawberry jam between the cake and pastry cream. Adds a fruity balance to the rich chocolate and cream.
7. Boozy Boston Cream Pie
Add 1-2 tablespoons of rum, bourbon, or Grand Marnier to the pastry cream for a subtle adult twist. Ideal for holiday or special occasion desserts.
8. Coconut Cream Variation
Replace ½ of the heavy cream in the pastry cream with coconut milk and top with toasted coconut flakes. Adds a tropical flavor twist.
9. Layered Sheet Cake Version
Bake the cake in a sheet pan, layer the pastry cream, and pour ganache over the top. Cut into squares for a crowd-pleasing party dessert.
10. Mini Individual Pies
Use muffin tins or mini springform pans to make individual Boston Cream Pies. Layer pastry cream and ganache for personal servings, perfect for parties or gifting.
11. White Chocolate Delight
Use white chocolate in the ganache instead of dark chocolate. For extra flavor, add a teaspoon of vanilla or almond extract to the ganache.
12. Mocha Boston Cream Pie
Add 1 teaspoon of instant coffee granules to the chocolate ganache and a splash of coffee liqueur to the pastry cream. Rich, decadent, and perfect for coffee lovers.
FAQs
- Can I make the pastry cream ahead of time?
Yes, it can be made a day in advance and stored in the refrigerator. - Can I use pre-made cake instead of baking from scratch?
Yes, but fresh homemade cake gives the best texture and flavor. - Can I substitute heavy cream in the ganache?
Yes, whipping cream or half-and-half can be used, though heavy cream produces a richer ganache. - How do I prevent a skin from forming on the pastry cream?
Cover the surface directly with plastic wrap while cooling. - Can I freeze Boston Cream Pie?
Freezing is not recommended as the ganache and pastry cream may separate. - How do I ensure even cake layers?
Use a kitchen scale to divide batter evenly between pans before baking. - Can I add fruit to this dessert?
Yes, fresh berries like strawberries or raspberries work well between layers. - How long should I chill the cake before serving?
At least 2 hours for the pastry cream to set; overnight is ideal for best results. - Can I make this gluten-free?
Yes, substitute all-purpose flour with a 1-to-1 gluten-free baking flour blend. - Can I make individual servings?
Yes, bake in small cake pans or muffin tins and layer with pastry cream and ganache for mini versions.
This Boston Cream Pie is a decadent, homemade dessert that impresses with every bite. The combination of soft cake, creamy pastry filling, and luscious chocolate ganache creates a classic dessert that’s perfect for celebrations or simply enjoying a special treat at home. Serve chilled and savor the rich, creamy flavors that make this dessert a timeless favorite.
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Boston Cream Pie
Description
Boston Cream Pie is a timeless dessert that combines soft, fluffy vanilla cake with creamy pastry filling and a rich chocolate ganache. Made entirely from scratch, this dessert is perfect for special occasions or an indulgent treat. Its layers of light cake, smooth pastry cream, and glossy ganache create a dessert that is both visually stunning and irresistibly delicious.
Ingredients
Pastry Cream
- 1 cup milk
- 1 cup heavy whipping cream
- 9 tablespoons granulated sugar, divided
- ¼ teaspoon salt
- 5 large egg yolks, room temperature
- 3 tablespoons cornstarch
- 1 ½ teaspoons vanilla extract
- 4 tablespoons unsalted butter, softened and cut into pieces
Cake
- ¼ cup unsalted butter, softened to room temperature
- ¼ cup vegetable oil
- ¾ cup granulated sugar
- 2 large eggs, room temperature
- ½ tablespoon vanilla extract
- 1 ½ cups all-purpose flour
- ½ tablespoon baking powder
- ¼ teaspoon salt
- ⅔ cup buttermilk, room temperature
Ganache
- 1 cup chocolate chips
- ½ cup heavy whipping cream
- 2 tablespoons corn syrup (optional)
Instructions
Pastry Cream
- Combine milk, cream, 6 tablespoons sugar, and salt in a saucepan over medium heat. Stir until sugar dissolves and mixture simmers, then remove from heat and cool 10 minutes.
- In a separate bowl, whisk egg yolks with remaining sugar. Add cornstarch and mix.
- Gradually whisk a small portion of warm cream into the egg mixture, then combine fully.
- Return mixture to saucepan and cook over medium heat, whisking constantly until thickened.
- Remove from heat, stir in vanilla and butter pieces until incorporated.
- Strain cream, cover with plastic wrap directly on surface, and chill at least 2 hours.
Cake
- Preheat oven to 350°F (175°C). Prepare two 9-inch round cake pans with parchment and greased sides.
- Cream butter, oil, and sugar until smooth. Add eggs one at a time, then stir in vanilla.
- Whisk together flour, baking powder, and salt. Alternately fold flour and buttermilk into butter mixture, starting and ending with flour.
- Divide batter evenly into pans and bake 15 minutes or until a toothpick comes out mostly clean. Cool 10-15 minutes in pans, then transfer to a rack.
Ganache & Assembly
- Combine chocolate and cream over low heat, stirring until smooth. Stir in corn syrup if desired and cool until slightly thickened.
- Place one cake layer on a serving tray, spread pastry cream evenly, then top with second cake layer.
- Pour ganache over the top and spread gently to create a drip effect. Chill 20 minutes to set before slicing.
Notes
- Serve Boston Cream Pie chilled for the best texture and flavor.
- Use a sharp knife dipped in hot water to cut clean slices.
- Store leftovers in an airtight container in the refrigerator for up to 3 days.
- Avoid freezing, as the pastry cream and ganache may separate and affect texture.
- Allow the cake to sit at room temperature for 10-15 minutes before serving to soften slightly.