Pictures of Fudge during the process

 Bring sour cream, butter and sugar together.  Boil 5 minutes.

 Add the marshmallows, then the chocolate.

 Mix everything together, stirring until the chocolate and marshmallows are melted.  Add nuts and vanilla at the end.  Pour into a greased pan.  I made a half batch, so I poured it into an 8 X 8 inch pan.

 

  This is the finished product.  Cut into desired pieces.  Enjoy!