Boston Cream Cupcakes
Decadent Vanilla Cupcakes Filled with Luscious Custard and Topped with Chocolate Ganache
Ingredients:
1 1/2 cups all-purpose flour
1 cup granulated sugar
1 1/2 teaspoons baking powder
1/2 teaspoon salt
1/2 cup unsalted butter, room temperature
2 large eggs
1/2 cup whole milk
1 teaspoon vanilla extract
For the Custard Filling:
1 cup whole milk
3 egg yolks
1/3 cup granulated sugar
2 tablespoons cornstarch
1 teaspoon vanilla extract
For the Chocolate Ganache:
1 cup heavy cream
8 ounces semi-sweet chocolate, chopped
Directions:
Preheat oven to 350°F (175°C). Line a muffin tin with cupcake liners.
In a large bowl, whisk together flour, sugar, baking powder, and salt. Add butter, eggs, milk, and vanilla; beat until smooth.
Fill each cupcake liner about 2/3 full with batter. Bake for 18-20 minutes, or until a toothpick inserted into the center comes out clean. Allow to cool.
For the custard: In a medium saucepan, whisk together milk, egg yolks, sugar, and cornstarch. Cook over medium heat, stirring constantly, until thickened. Remove from heat; stir in vanilla. Chill until cool.
For the ganache: Heat the heavy cream until just boiling. Pour over chopped chocolate and let sit for 5 minutes, then stir until smooth.
Cut a small hole in the top of each cupcake and fill with custard. Top with chocolate ganache.
Prep Time: 30 minutes | Cooking Time: 20 minutes | Total Time: 50 minutes
Kcal: 389 kcal | Servings: 12 cupcakes
Secrets to Achieve the Perfect Boston Cream Cupcakes
- Room Temperature Ingredients: Ensure all ingredients, especially butter and eggs, are at room temperature. This promotes even mixing and a smoother batter.
- Proper Mixing Technique: Mix the cupcake batter just until combined after adding the dry ingredients. Overmixing can lead to tough cupcakes.
- Measuring Flour Correctly: Spoon flour into measuring cups and level off with a knife for accurate measurement. Too much flour can make the cupcakes dense.
- Even Cupcake Filling: Fill cupcake liners about 2/3 full to ensure even baking and proper rising without overflowing.
- Oven Temperature Accuracy: Use an oven thermometer to verify the temperature. Baking at the correct temperature ensures the cupcakes cook evenly.
- Cooling Time: Allow cupcakes to cool in the pan for 5-10 minutes before transferring to a wire rack. This prevents them from becoming soggy.
- Chilling the Custard: Chill the custard thoroughly before filling the cupcakes. This ensures it sets properly and doesn’t leak out when the cupcakes are cut.
- Creating a Well for Custard: Use a paring knife to cut a small cone-shaped piece from the top of each cupcake to create space for the custard filling.
- Spoon or Piping Bag for Filling: Use a small spoon or a piping bag to fill the cupcakes with custard. This ensures each cupcake gets an even amount of filling.
- Smooth Ganache Preparation: Heat the cream just until it starts to boil, then pour over the chopped chocolate. Let sit for a few minutes before stirring to ensure a smooth ganache.
- Consistent Ganache Thickness: Adjust the ganache thickness by varying the ratio of chocolate to cream. More chocolate results in a thicker ganache.
- Ganache Application: Dip the tops of the filled cupcakes into the ganache or use a spoon to pour it over. Work quickly to avoid ganache setting too soon.
- Ganache Cooling Time: Allow the ganache to set slightly at room temperature before serving. This ensures it holds its shape but remains creamy when bitten into.
- Storage Before Serving: Store unfilled cupcakes in an airtight container at room temperature. Fill and top with ganache just before serving for freshness.
- Decorative Touches: Garnish with a chocolate curl, a sprinkle of cocoa powder, or a drizzle of white chocolate for an elegant finish.
- Experiment with Flavors: Try different extracts in the custard or ganache, such as almond or orange, for a unique twist on classic Boston cream.
- Handling and Storing Leftovers: Refrigerate any leftover filled cupcakes due to the custard filling. Bring them to room temperature before serving for best taste and texture.
- Serve at Room Temperature: Serve Boston cream cupcakes at room temperature to allow the flavors of the custard and ganache to fully develop.
- Making Ahead: Prepare components like the custard and ganache a day in advance, then assemble the cupcakes just before serving for convenience.
- Enjoy Fresh: Boston cream cupcakes are best enjoyed fresh on the day they are made to maintain the soft texture of the cupcakes and the creamy filling.
Here are some common questions about Boston Cream Cupcakes along with their answers:
1. Can I use cake flour instead of all-purpose flour for the cupcakes?
- Yes, you can use cake flour instead of all-purpose flour for a lighter texture. Substitute cake flour in a 1:1 ratio for the all-purpose flour called for in the recipe.
2. Can I use vanilla pudding instead of making custard from scratch?
- Yes, you can use store-bought vanilla pudding as a shortcut for the custard filling. Simply prepare the pudding according to the package instructions and use it to fill the cupcakes.
3. How do I prevent the cupcakes from sinking in the middle?
- To prevent cupcakes from sinking in the middle, avoid overmixing the batter and ensure that the oven temperature is accurate. Additionally, avoid opening the oven door frequently while baking.
4. Can I use dark chocolate instead of semi-sweet chocolate for the ganache?
- Yes, you can use dark chocolate instead of semi-sweet chocolate for a richer flavor. Adjust the sweetness level to taste by adding more or less sugar to the ganache.
5. Can I make these cupcakes ahead of time?
- Yes, you can make the cupcakes ahead of time and store them unfilled in an airtight container at room temperature for up to 2 days. Fill and top with ganache just before serving for the freshest taste and texture.
6. Can I freeze the cupcakes?
- Yes, you can freeze the unfilled cupcakes for up to 1 month. Allow them to cool completely, then wrap them individually in plastic wrap and place them in a resealable freezer bag. Thaw overnight in the refrigerator before filling and topping with ganache.
7. Can I use vanilla extract instead of vanilla bean paste?
- Yes, you can use vanilla extract instead of vanilla bean paste. Vanilla extract will provide a similar flavor, but the specks of vanilla bean in the paste add visual appeal to the custard.
8. Can I use a different type of milk for the custard?
- Yes, you can use different types of milk for the custard, such as 2% or skim milk. Keep in mind that using a lower-fat milk may result in a slightly thinner custard. Adjust the amount of cornstarch if needed to achieve the desired thickness.