While you're preparing your dessert, preheat the oven to 350 degrees Fahrenheit.
In a large bowl, mix up the melted butter and cracker crumbs until everything is well combined.
Next, put the mixture in a 9 x 13 baking pan and gently press it down around the edges, corners, and sides of the pan.
You will bake this crust until it's golden brown, and it smells like it's been toasted. That should take around 15 minutes. Take the crust out of the oven to let it sit and cool.
The next step is to mix up the pudding, ice cream, and the milk into a large bowl. Make sure the mixture is well-blended.
Now pour it into the crust, spreading it evenly around the pan.
Top off this dessert with some toffee pieces and put it in the freezer until it's frozen, which shouldn't take more than one hour.