Chocolate Cream Pie

INGREDIENTS

• :
• 24 Oreo cookies, crushed into crumbs
• 3 tablespoons butter, melted and cooled
• 2½ cups half-and-half
• Pinch salt
• 1/3 cup granulated sugar, divided
• 2 tablespoons cornstarch
• 6 egg yolks, at room temperature
• 6 tablespoons unsalted butter, cold and cut into 6 pieces
• 6 ounces semisweet or bittersweet chocolate, finely chopped
• 1 ounce unsweetened chocolate, finely chopped
• 1 teaspoon vanilla extract
• 1½ cups heavy cream
• 4½ teaspoons granulated sugar
• ½ teaspoon vanilla extract