Whip the Cream. In a large bowl, whip the heavy cream until stiff peaks form.
Mix in Condensed Milk. Gently fold in sweetened condensed milk and cocoa powder until well combined.
Add Brownie Chunks. Fold in the brownie chunks, ensuring they are evenly distributed throughout the mixture.
Freeze. Transfer the mixture into a loaf pan or container, smoothing the top with a spatula. Cover with plastic wrap or a lid and freeze for at least 6 hours or overnight until firm.
Serve. Scoop into bowls or cones, garnish with extra brownie pieces if desired, and enjoy your homemade indulgence!