Ingredients:

  • 1/2 cup (113g) unsalted butter, melted
  • 1 cup (200g) granulated sugar
  • 1/2 cup (42g) unsweetened cocoa powder
  • 1/4 teaspoon salt
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • 1/2 cup (60g) all-purpose flour
  • 1.5 quarts (approx. 1.4 liters) high-quality vanilla ice cream, slightly softened
  • 1.5 cups (about 18 standard-sized) Oreo cookies, coarsely crushed
  • 1 cup (about 12 standard-sized) Oreo cookies, finely crushed
  • 2 tablespoons (28g) unsalted butter, melted
  • 1 cup (240ml) heavy cream
  • 8 ounces (227g) semi-sweet chocolate, finely chopped

Instructions:

  1. Preheat oven to 350°F (175°C). Line the bottom of a 9-inch springform pan with parchment paper.
  2. In a large bowl, combine melted butter, sugar, cocoa powder, and salt.
  3. Stir in vanilla extract. Beat in eggs one at a time.
  4. Gradually add flour, mixing until just combined.
  5. Pour batter into the prepared pan and spread evenly.
  6. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out with moist crumbs. Let cool completely in the pan.
  7. Combine crushed Oreo cookies and melted butter in a bowl.
  8. Press firmly onto the cooled brownie base. Freeze for 30 minutes to firm up.
  9. Let ice cream soften slightly at room temperature (but don't let it melt completely!).
  10. In a large bowl, gently fold together the softened ice cream and coarsely crushed Oreo cookies.
  11. Spread the ice cream mixture evenly over the Oreo crumb layer.
  12. Freeze for at least 2 hours, or until solid.
  13. Heat heavy cream in a saucepan over medium heat until simmering. Do not boil.
  14. Pour hot cream over chopped chocolate in a bowl.
  15. Let sit for 1 minute, then whisk until smooth and glossy.
  16. Remove the cake from the freezer and carefully release it from the springform pan.
  17. Pour the slightly cooled chocolate ganache over the top of the ice cream layer, spreading evenly with an offset spatula.
  18. Freeze for at least 2 more hours, or until the ganache is firm.
  19. Let the ice cream cake sit at room temperature for 5-10 minutes before slicing and serving.