In a zip lock bag crush Oreos and butterfingers. (It's easier to crush a little at a time and then put in a bowl.) Once all crushed, mix in a stick of melted butter. In a 9x13 pan press down ½ the mixture. Then, put ice cream on top of mixture. (I opened up the whole container of ice cream and cut it into slices...then it's easy to pat down in the pan.) Cover the ice cream with remaining ½ mixture. Lastly, put in the freezer until you're ready to eat it!
You can use different flavors of Oreos and ice cream. To serve I use a bit of chocolate sauce on the plate and place the dessert on top. Then drizzle a bit of chocolate sauce over the top with maybe a bit of whipped cream.