These might be one of my favorite cupcakes. I could probably sit down and eat a whole bowl of just the custard filling. There just so good. Try some for yourself!
- Custard filling:
- 1 ⅓ cups heavy cream
- 3 egg yolks
- ⅓ cup sugar
- 4 teaspoons cornstarch
- 2 Tablespoons butter, cut into 2 pieces
- 1 ½ teaspoons vanilla
- Cupcakes:
- 4 eggs
- 2 teaspoons vanilla
- 1 cup buttermilk
- 2 ½ cups flour
- 1 ½ cups sugar
- 1 Tablespoon baking powder
- 1 ½ sticks butter, at room temp and cut into small pieces
- Ganache:
- 8 ounces chocolate, chopped (semi-sweet or dark)
- ⅔ cup heavy cream
- ¼ cup light corn syrup
- ½ teaspoon vanilla
Make the pastry cream by bringing the heavy cream to a simmer over medium heat in a saucepan. In a small bowl, whisk the egg yolks, sugar, and cornstarch together until pale yellow and thick. Slowly stir some of the hot cram into the egg mixture, then return the whole bowl in the saucepan and cook, whisking constantly, until thick and glossy, about 2 minutes. Remove from heat and stir in vanilla and butter. Transfer to a small bowl, cover with plastic wrap, pressing directly to surface of custard. Refrigerate for at least 2 hours.
Make the cupcakes: preheat oven to 350 degrees and line your cupcake pan with cupcake liners. In your stand up mixer, mix the flour, sugar, and baking powder. Beat in the butter, adding 1 Tablespoon at a time. Continue to beat until the mixture looks like moist crumbs. Beat in the eggs, buttermilk and vanilla, mixing well. Scoop into your prepared liners, filling about 3/4" full. Bake for 18 minutes. Let sit for 5 minutes before removing to wire racks to cool completely.
Make the ganache: Microwave all the ganache ingredients together, whisking often, until melted and smooth, about 1-2 minutes. Let glaze cool until it's thick but pourable. About 30 minutes.
To fill the cupcakes with the custard: scoop out the inside of the cupcake by cutting around the inner edge of the top of each cupcake, removing a cone-shaped piece from each cupcake. Fill with 2 Tablespoons of the custard, trim and replace the cupcake top and set back on wire rack over wax paper. Spread ganache over cupcakes.
Makes about 2 dozen cupcakes.