
If you love the classic flavors of Boston cream pie, you’ll adore these Boston Cream Cupcakes. Imagine biting into a fluffy vanilla cupcake, discovering a rich, silky pastry cream filling, and finishing with a glossy chocolate ganache topping that melts in your mouth. These cupcakes bring together everything you love about the original Boston cream pie in a fun, handheld form that’s perfect for any occasion.
A Decadent Handheld Dessert
Yes, this recipe has a few steps, but the results are 100% worth it. The pastry cream needs time to chill before assembling, so I always make it a day ahead to keep things simple. Once everything comes together, you’ll have bakery-worthy cupcakes that look stunning and taste even better.
The first time I made these, I was nervous about filling the cupcakes, but once I got the hang of it, it was surprisingly easy. Now, they’re one of my most requested desserts at family gatherings.
Key Ingredients and Why They Matter

For the Vanilla Cupcakes
- All-Purpose Flour: The foundation of the cupcakes, providing structure and softness.
- Baking Powder: Ensures the cupcakes rise and stay light and fluffy.
- Butter & Sugar: Creaming them together creates an airy, delicate texture.
- Eggs: Add moisture and help give the cupcakes their soft crumb.
- Whole Milk: Keeps the batter rich and tender, making each bite melt in your mouth.
- Vanilla Extract: Essential for classic vanilla cupcake flavor.
For the Pastry Cream Filling
- Whole Milk: The base of the pastry cream, making it lusciously smooth.
- Egg Yolks: Give the filling a rich, custardy texture.
- Cornstarch: Helps thicken the cream for that perfect velvety consistency.
- Butter & Vanilla: Add depth and enhance the flavor.
For the Chocolate Ganache
- Semi-Sweet Chocolate: Gives the ganache a deep, smooth chocolate flavor.
- Heavy Cream: Creates a glossy, rich texture when combined with chocolate.
- Corn Syrup (Optional): Adds extra shine for a picture-perfect topping.
I always use high-quality vanilla extract and real butter for the best flavor. Trust me, the extra effort makes a difference!
Step-By-Step Baking Instructions
- Step 1: Making the Pastry Cream (Start First!)
- Heat 2 cups of whole milk in a saucepan over medium heat until steaming, but not boiling.
- Step 2:
- In a bowl, whisk together sugar, egg yolks, and cornstarch until smooth.
- Step 3:
- Slowly pour ½ cup of the hot milk into the egg mixture, whisking constantly to prevent curdling.
- Step 4:
- Gradually whisk the tempered mixture back into the saucepan and cook on low heat, stirring until thickened (about 2-3 minutes).
- Step 5:
- Remove from heat and stir in butter and vanilla extract.
- Step 6:
- Transfer to a bowl, press plastic wrap directly onto the surface, and chill for at least 2 hours (or overnight).

- Step 7: Baking the Vanilla Cupcakes
- Preheat oven to 350°F (175°C) and line a muffin tin with cupcake liners.
- Step 8:
- In a bowl, whisk together flour, baking powder, and salt.
- Step 9:
- In a separate bowl, beat butter and sugar until light and fluffy.
- Step 10:
- Add eggs one at a time, mixing well, then stir in vanilla extract.
- Step 11:
- Alternate adding dry ingredients and milk, mixing until just combined.
- Step 12:
- Divide batter evenly into the cupcake liners, filling ⅔ full.
- Step 13:
- Bake for 18-20 minutes, or until a toothpick inserted in the center comes out clean.
- Step 14:
- Let the cupcakes cool completely before filling.
Storing & Serving Tips
Storage: Store cupcakes in an airtight container in the fridge for up to 4-5 days.
Let sit at room temperature for 15-20 minutes before serving to soften the pastry cream.
Freezing (Not Recommended!)

Because of the custard-based filling, freezing isn’t ideal as it may separate when thawed.
Ganache Shine Tip
For extra glossy ganache, stir in ½ teaspoon of butter after melting.
Frequently Asked Questions
- → Can I make these cupcakes ahead of time?
- Yes, store them in an airtight container in the fridge for up to 5 days.
- → Do I need to use a piping bag for the filling?
- A piping bag makes it easier, but you can also use a ziplock bag with a corner cut off.
- → Can I use store-bought pudding instead of pastry cream?
- Yes, but homemade pastry cream gives the best authentic flavor.
- → How do I prevent cupcakes from sinking?
- Avoid overfilling the liners and ensure your baking powder is fresh.
- → Can I skip the corn syrup in the ganache?
- Yes, but the ganache may not be as thick and glossy.