Grasshopper Pudding Pie

This pie is absolutely amazing!  Super easy to make (only 6 ingredients too:) and simply delicious!  The mint gives it a nice fresh flavor, while the chocolate...well, chocolate always makes everything better, right?  Enjoy!
-1 Oreo pie crust
-1 1/2 cups cold milk
-1/4 to 1/2 tsp mint extract (I like mine more minty so I used the 1/2 tsp)
-1 package pistachio pudding
-8 oz cool whip, thawed
-1 cup semi sweet chocolate chips
Beat milk, extract and pudding with mixer for 2 minutes.  Stir in cool whip and chocolate chips.  Pour mixture into crust.  Cover and freeze for at least 6 hours.   Remove from freezer about 10 minutes before serving to allow it to thaw a little so that you can cut it.  Enjoy!