The Best Boston Cream Cupcakes with Rich Pastry Cream And Ganache

The first time I had Boston cream cupcakes was at a little bakery tucked into a side street in Boston’s North End. I still remember the moment I bit into that soft, vanilla sponge, only to be surprised by a creamy custard center and glossy chocolate ganache on top. It was the classic Boston cream pie, miniaturized and, dare I say, even better. These Boston cream cupcakes bring all that nostalgia into your kitchen, with a recipe that’s easy enough for a casual weekend bake and impressive enough for birthdays, showers, or a cozy dinner party dessert.

Whether you’re a fan of traditional Boston cream pie or just love a good vanilla-chocolate combo, this cupcake version is an absolute showstopper. These little treats are perfect when you want to serve a crowd without slicing a whole cake. Plus, they’re incredibly satisfying, each bite gives you that rich pastry cream, fluffy cake, and smooth chocolate all at once. It’s an experience that’s equal parts elegant and comforting.

Why These Boston Cream Cupcakes Work So Well

Let’s be honest: cupcakes are already a win. But when you fill them with creamy homemade custard and drizzle them with a rich chocolate ganache, they become something magical. What sets these Boston cream cupcakes apart is their balance. The cake base is moist but sturdy enough to hold the filling without becoming soggy. The pastry cream is thick and silky with a vanilla bean richness that doesn’t overpower. And the ganache? It’s velvety, slightly bitter, and brings that iconic finishing touch.

I love that this recipe feels indulgent without being overly complicated. You can make all three components, cupcakes, custard, and ganache, ahead of time and assemble them just before serving. If you’re short on time, you can even swap in store-bought pudding and chocolate glaze, though homemade really makes a difference.

For dietary adjustments, you can easily make these gluten-free by using a 1:1 gluten-free flour blend and dairy-free by using plant-based butter, milk, and chocolate. The results are still rich, creamy, and incredibly satisfying. And if you want to skip the ganache for a quicker topping, a dusting of powdered sugar or a dollop of whipped cream also works beautifully.

Recipe Card

Boston Cream Cupcakes Recipe

Recipe by soukayna

0.0 from 0 votes

Cuisine: AmericanDifficulty: Medium

Servings

12

servings

Prep time

30

minutes

Cooking time

18

minutes

Calories

300

kcal

These Boston cream cupcakes bring together the best elements of the classic Boston cream pie in a cupcake form. With a light and fluffy vanilla cake, creamy custard filling, and rich chocolate ganache topping, they’re the perfect treat for any occasion. Whether you’re celebrating a birthday, a holiday, or just need a sweet pick-me-up, these cupcakes are sure to impress!

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Ingredients

• For the cupcakes:

• 1 1/2 cups all-purpose flour

• 1 1/2 tsp baking powder

• 1/2 tsp salt

• 1/2 cup unsalted butter, softened

• 1 cup granulated sugar

• 2 large eggs

• 1 tsp vanilla extract

• 1/2 cup whole milk

• For the pastry cream filling:

• 1 1/4 cups whole milk

• 1/2 cup heavy cream

• 4 large egg yolks

• 1/2 cup granulated sugar

• 2 tbsp cornstarch

• 1 tsp vanilla extract

• 1 tbsp unsalted butter

• For the chocolate ganache topping:

• 4 oz semi-sweet or dark chocolate, chopped

• 1/2 cup heavy cream

• 1 tbsp unsalted butter

Directions

• Make the cupcakes:
• Preheat your oven to 350°F (175°C). Line a 12-cup muffin tin with paper liners.
• In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.
• In a large mixing bowl, cream together the butter and sugar until light and fluffy, about 3-4 minutes.
• Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
• Gradually add the dry ingredients to the wet ingredients, alternating with the milk. Mix until just combined.
• Divide the batter evenly between the muffin cups, filling each about 2/3 full.
• Bake for 18-22 minutes, or until a toothpick inserted into the center comes out clean. Let the cupcakes cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.
• Make the pastry cream:
• In a medium saucepan, combine the milk and heavy cream. Heat over medium heat until it just starts to simmer.
• In a separate bowl, whisk together the egg yolks, sugar, and cornstarch until smooth.
• Gradually pour the hot milk mixture into the egg mixture, whisking constantly to temper the eggs.
• Return the mixture to the saucepan and cook over medium heat, whisking constantly, until it thickens and comes to a boil (about 2-3 minutes).
• Remove from heat and stir in the vanilla extract and butter. Let the pastry cream cool to room temperature, then refrigerate for at least 1 hour before filling the cupcakes.
• Make the ganache:
• In a small saucepan, heat the heavy cream over medium heat until it begins to simmer.
• Pour the hot cream over the chopped chocolate and let it sit for 2-3 minutes.
• Stir until the chocolate is completely melted and smooth. Add the butter and stir to combine.
• Let the ganache cool to room temperature before using.
• Assemble the cupcakes:
• Once the cupcakes have cooled completely, use a small knife or cupcake corer to remove the center of each cupcake, creating a small well.
• Fill each well with a spoonful of chilled pastry cream.
• Spoon or drizzle the ganache over the top of each filled cupcake, allowing it to spill slightly over the edges.
• Let the ganache set for about 30 minutes before serving.

Notes

• To save time, you can make the pastry cream a day ahead and refrigerate it overnight.
• If you’re in a rush, store-bought chocolate ganache or frosting can be used, but homemade ganache is highly recommended for the best flavor.
• For an extra special touch, you can dust the finished cupcakes with powdered sugar or add sprinkles for a festive occasion.

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Pro Tips for Success

Making Boston cream cupcakes might sound like a fancy undertaking, but with the right tips and a little patience, you’ll be crafting perfect cupcakes in no time. Here are a few key pieces of advice to help you achieve success every time:

1. Let the cupcakes cool completely before filling: This is crucial to avoid any melty mess. Warm cupcakes can cause the pastry cream to soften, making it harder to hold the filling inside. Make sure they’re completely cooled before cutting the center to fill.
2. Make sure the custard is thick enough: When making the pastry cream, don’t rush the process. It should be thick enough to hold its shape when piped into the cupcakes. If it’s too runny, cook it a little longer on low heat.
3. Chill the ganache before using: For the perfect glossy, firm ganache topping, let it cool slightly and thicken before pouring it over the cupcakes. This way, it won’t drip too much down the sides but will stay beautifully on top.
4. Use quality vanilla extract and chocolate: Since vanilla and chocolate are the stars of this recipe, quality ingredients make a noticeable difference. Use pure vanilla extract and high-quality chocolate for both the custard and ganache. The flavors will be richer and more complex, making your cupcakes extra special.

Other twists to the Boston Cream Cupakes

1. Gluten-Free Boston Cream Cupcakes

If you or your guests are gluten-sensitive, fear not this recipe can easily be made gluten-free without sacrificing flavor or texture. Simply swap the all-purpose flour for a gluten-free flour blend (make sure it’s a 1:1 substitution). I recommend using a high-quality blend that includes xanthan gum, which helps mimic the structure of wheat flour. The filling and ganache remain the same, and you’ll still have a wonderfully moist cupcake with that delicious custard center. A gluten-free version of Boston cream cupcakes will impress anyone, whether they follow a gluten-free diet or not.

2. Mini Boston Cream Cupcakes

For a fun twist, make these cupcakes in mini form. The smaller size makes them perfect for bite-sized treats at parties, potlucks, or even for a special breakfast (yes, they’re that good!). Simply adjust the baking time by reducing it to 10-12 minutes, checking with a toothpick for doneness. When making mini cupcakes, be mindful of the filling quantity; they’ll need just a little less pastry cream, but the same amount of ganache on top. These mini versions are just as indulgent and more fun to serve!

3. Dairy-Free Boston Cream Cupcakes

For those with lactose intolerance or a dairy-free lifestyle, this variant is an excellent option. You can make both the cupcake base and pastry cream dairy-free by substituting the butter with plant-based butter (like Earth Balance) and using dairy-free milk such as almond, oat, or coconut milk. For the ganache, choose a dairy-free chocolate (many brands make dairy-free dark chocolate options) and use coconut milk or almond milk for the cream. The result is a completely dairy-free version of Boston cream cupcakes that’s just as rich and creamy as the original.

4. Peanut Butter Boston Cream Cupcakes

If you love adding a little twist to your desserts, try a peanut butter variation. After filling your cupcakes with the traditional pastry cream, swirl in a little peanut butter into the ganache before pouring it over the cupcakes. The combination of the creamy chocolate-peanut butter topping with the rich custard and soft cake adds a new layer of flavor that’s sure to be a hit. If you’re not a fan of peanut butter, you could also try other nut butters, like almond or hazelnut, for a similar effect.

FAQs

Let’s Wrap It Up

There’s just something magical about Boston Cream Cupcakes. Maybe it’s the surprise of the silky vanilla pastry cream tucked inside, or the rich, glossy chocolate ganache that crowns each golden bite. Or maybe it’s the way they bridge the gap between a casual afternoon treat and a show-stopping dessert worthy of any celebration.

Whether you’re baking for a birthday party, a weekend indulgence, or simply trying something new in your kitchen, these cupcakes never disappoint. They bring the nostalgic flavors of a classic Boston Cream Pie into a fun, handheld version that’s just as impressive as it is satisfying.

Ready for more delicious ideas? If you loved these cupcakes, you might want to check out my Pink Velvet Cupcakes, or dive into another custard favorite like my Coconut Custard Pie Recipe.