Refrigerate the mixer bowl and whisk attachment for about a half hour or so. Take out when ready to make.
Add the whipping cream, sugar, vanilla extract and pumpkin pie spice to the mixing bowl.
Using the whisk attachment, turn your mixer on to 8. When the whipping cream mix starts to thicken (about 1-1½ minutes) , add in the puree and continue to whip until it is desired consistency (keep your eye on it so you don't overwhip)- see notes.
Enjoy and store leftovers in the fridge.
Hand Mixer Method
Chill your mixing bowl in the fridge for at least a half hour and keep in there until ready to use.
Add the whipping cream, sugar, vanilla extract and pumpkin pie spice to the mixing bowl.
On medium, whip the cream mixture until it starts to thicken slightly. Add in the pumpkin puree and continue to whip until desired consistency - see notes.
Enjoy and store leftovers in the fridge.
Notes
This was edited to change when to add the pumpkin puree. Originally we suggested whipping your cream mix to stiff peaks and then gently folding in puree with a spatula or spoon. Tho this is a great option and it works well, our preferred method is to add the puree before it is done whipping. Whipping cream goes from whipped cream to butter rather quickly. It is very important that you stop the mixer right as the stiff peaks are forming. I wouldn't walk away too far from the stand mixer while making it. I thought the amount of pumpkin pie spice was good but my kids think a little more would be better - they like pumpkin spice lattes and I do not as a reference for you. I prefer more of the pumpkin flavor, but you can add a little more spice in it if you like. The spice must be added before whipping tho.Nutrition is estimated. This makes a little more then 2 cups and so I guessed with it serving 6 for a dessert topping. In our house it is sometimes less then that.