Boston Cream Pie

and 1/3 cups (185 g) all-purpose flour

baking powder

salt

whole milk

(1 stick/115 g) unsalted butter

and 1/2 teaspoons pure vanilla extract

large eggs (, at room temperature)

and 1/2 cups (300 g) granulated sugar

large egg yolks

granulated sugar

cornstarch

flour

heavy cream

whole milk

and 1/2 teaspoons pure vanilla extract

unsalted butter (, softened to room temperature)

g/4 oz. semisweet or bittersweet chocolate (, finely chopped)

heavy cream