Preheat the oven to 350 degrees F. Grease a loaf pan with butter or nonstick cooking spray.
Add the brownie and candy bars to the prepared loaf pan.
In a medium bowl, whisk the heavy cream, vanilla and eggs to combine. Pour the mixture into the prepared loaf pan over the brownies and candy bars, allowing the liquid to soak in.
Bake until puffed and cooked through, about 30 minutes. Serve with vanilla ice cream.