Boston Cream Cupcakes
This recipe yields approximately 12 to 14 cupcakes and captures that “absolute heaven” experience of tender cake, silky cream, and fudgy chocolate.
1. The Vanilla Cupcakes
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Ingredients:
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1 ½ cups all-purpose flour
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1 cup granulated sugar
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1 ½ tsp baking powder
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½ tsp salt
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½ cup (1 stick) unsalted butter, softened
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1 large egg, room temperature
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½ cup whole milk
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1 ½ tsp pure vanilla extract
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Instructions:
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Preheat oven to 350°F (175°C) and line a muffin tin with paper liners.
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Whisk the dry ingredients together. Beat in the butter until the mixture looks like coarse sand.
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Whisk the egg, milk, and vanilla, then slowly incorporate into the dry mixture until just combined.
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Fill liners 2/3 full and bake for 18–20 minutes. Let them cool completely before filling.
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2. The Pastry Cream (Crème Pâtissière)
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Ingredients:
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2 cups whole milk
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½ cup sugar
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4 large egg yolks
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¼ cup cornstarch
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2 tbsp unsalted butter
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1 tsp vanilla extract
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Instructions:
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Heat milk in a saucepan until simmering.
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Whisk yolks, sugar, and cornstarch in a bowl. Slowly drizzle in half the warm milk while whisking constantly (tempering).
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Pour everything back into the pan. Whisk over medium heat until it thickens into a “velvety smooth” custard.
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Stir in butter and vanilla. Cover with plastic wrap (touching the surface) and chill for at least 2 hours.
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3. The Chocolate Ganache
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Ingredients:
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4 oz semi-sweet chocolate, finely chopped
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½ cup heavy cream
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1 tsp light corn syrup (optional, for a “beautifully glossy” finish)
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Instructions:
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Place chocolate in a bowl. Heat cream until it just begins to boil, then pour over the chocolate.
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Let sit for 5 minutes, then stir until smooth and glossy. Stir in corn syrup if using.
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Assembly & “Pro” Tips
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The “Lid” Technique: Use a paring knife to cut a 1-inch deep cone from the top of the cooled cupcake. Slice off the pointy bottom of the cone to create a flat “lid”.
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Filling: Pipe or spoon the chilled pastry cream into the cavity. Place the “lid” back on top to seal the cream inside.
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The Topping: Dip the top of the cupcake into the warm ganache or spoon it over the top. Let it set before serving.
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Storage: Keep these in the refrigerator for up to 5 days. Do not freeze, as the pastry cream can become grainy.