Chocolate Pudding Pie

Adapted from Gourmet, lifted from Smitten Kitchen

Pudding filling:
1/4 cup cornstarch
1/3 cup plus 2 tablespoons sugar, divided
3 tablespoons unsweetened cocoa powder
1/4 teaspoon salt
3 cups whole milk
4 ounces bittersweet chocolate (not more than 60% cacao), finely chopped
1 teaspoon pure vanilla extract
1 cup chilled heavy cream

Bittersweet chocolate shavings for garnish (optional)

Make pudding filling: Whisk together cornstarch, 1/3 cup sugar, cocoa powder, and salt in a 2-quart heavy saucepan, then gradually whisk [tips alert!] in milk. Bring to a boil over medium heat, whisking constantly, then boil, whisking, two minutes (mixture will thicken). Remove from heat and whisk in chocolate and vanilla until smooth.

Pour filling into cooled shell and chill, its surface covered with wax paper (if you want to prevent a skin from forming), until cold, at least two hours.

Just before serving, beat cream with remaining two tablespoons sugar until it just holds soft peaks. Spoon onto pie and garnish with bittersweet chocolate shavings, if you’re feeling fancy.