FOR THE CHOCOLATE COOKIE CRUST: – 24 chocolate sandwich cookie – 4 tablespoons (60 grams) unsalted butter , melted and slightly cooled FOR THE CHOCOLATE FILLING: – 3 ounces semi-sweet chocolate , finely chopped – 1 tablespoon (15 grams) unsalted butter , cubed into small piece – 3/4 cup (150 grams) granulated sugar – 1/4 cup (25 grams) Rodelle Gourmet Baking Cocoa – 1/4 cup (32 grams) cornstarch – 1/2 teaspoon instant espresso powder or instant coffee granules (optional)
– 1 and 1/2 cups (360 ml) whole milk – 1/2 cup (120 ml) heavy whipping cream – 3 large egg yolk – 1 teaspoon pure vanilla extract