Set a large mixing bowl, or the bowl of a stand mixer, in the freezer to chill for 20 minutes.
Once your bowl is chilled, pour heavy cream into bowl of stand mixer or mixing bowl.
Add the powdered sugar.
Add the flavoring you've chosen. EITHER Bourbon or Whiskey, or Grand Marnier or Orange Flavoring, or vanilla, depending on which kind of whipped cream you want.
Using the whisk attachment for your stand mixer or hand blender, and whisk on medium to medium high speed until whipped cream stiffens, but is still light and fluffy. This time amount will vary from mixer to mixer, and even from batch to batch. It depends a little bit on the cream and how chilled your bowl is. However, a safe bet is 4 - 6 minutes.
When you see the cream stiffen to your desired consistency, stop whisking, and it is ready to serve. May also be stored int he refigerator for up to one week.