Mix together the crushed Oreos and 1 stick of melted butter.
Press crumbs into a 9x13 inch pan.
Layer the ice cream over the cookie mixture, spread evenly.
Sprinkle peanuts over the top and freeze for about an hour or until ice cream is set.
Into a large saucepan, combine the evaporated milk, butter, powdered sugar, and chocolate chips.
Melt and bring the mixture to a boil. Turn the heat down and simmer for 8-10 minutes, until the mixture slightly thickens.
Set aside and cool completely.
When cooled, pour over ice cream and peanuts.
Freeze for another 1-2 hours.
Let ice cream dessert thaw slightly in a refrigerator for 5-10 minutes before cutting with a warm knife.
Cut into small squares to serve.