In a skillet combine the butter, cream cheese, pumpkin, sweetened condensed milk, and pumpkin spice. Place over medium heat. Stir this constantly until thickened and well combined. 

Stir in the graham crackers and white chocolate chips until melted and smooth. Continue to stir until the mixture moves around as one piece and no longer sticks to the sides or bottom. 

Pour the mixture over a butter-greased baking sheet. Spread until there is an even layer. Put in the fridge for at least 2 hours. 

Pour sugar into a deep dish bowl. Rub butter on your hands to prevent the mixture from sticking. Use a spoon to get the mixture off the baking sheet, form the mixture into a ball using your hands. 

Put the ball into the sugar bowl. Move around until evenly coated. 

Use a toothpick to make the pumpkin lines on the sides. Place a chocolate chip on the top to form the pumpkin stem. Refrigerate until ready to serve. Enjoy chilled!