Vanilla Cupcakes:
1 1/2 cups (195 grams) all purpose flour
1 1/2 teaspoons baking powder
1/4 teaspoon salt
1/2 cup (113 grams) unsalted butter, room temperature
1 cup (200 grams) granulated white sugar
2 large eggs, room temperature
1 1/2 teaspoons pure vanilla extract
1/2 cup (120 ml) milk, room temperature
Pastry Cream:
2 large (35 grams) egg yolks
3 tablespoons (40 grams) granulated white sugar
2 tablespoons (20 grams) firmly packed cornstarch (corn flour)
1/8 teaspoon salt
1 cup (240 ml) whole (full fat) milk
1/2 tablespoon (6 grams) unsalted butter, at room temperature
1/2 teaspoon pure vanilla extract
Chocolate Glaze:
4 ounces (120 grams) semisweet or bittersweet chocolate, cut into pieces
3 tablespoons (42 grams) unsalted butter
1 1/2 tablespoons light corn syrup (or liquid glucose or golden syrup)
1 tablespoon liqueur (optional)
Read more: http://www.joyofbaking.com/cupcakes/BostonCreamPieCupcakes.html#ixzz3VHrD3uCE