Chocolate Chess Pie

Bahan-bahan (1 porsi)

• 1 pie crust
• 1/4 cup unsalted butter (1/2 stick )
• 1/2 cup 4 ounces bittersweet chocolate (chopped (I used 60%))
• 2 tablespoons Dutch process cocoa powder (or unsweetened cocoa powder)
• 1 teaspoon espresso powder (optional)
• 1 1/2 cups granulated sugar
• 1 tablespoon all-purpose flour
• 1 tablespoon cornmeal (not coarse ground)
• 1/4 teaspoon kosher salt
• 1/3 cup evaporated milk
• 4 large eggs (at room temperature)
• 2 teaspoons pure vanilla extract
• Whipped cream (optional for serving)