Start by whipping cold heavy cream in a clean stand mixer until you have firm peaks. Transfer the whipped cream to a separate bowl, and keep it stored in your refrigerator until Step 2. Quickly wipe your stand mixer bowl clean, and add softened butter to it. Use a paddle attachment to blend the butter at medium speed until it’s creamy. Then, blend room temperature cream cheese into the butter until you have a smooth and lump-free mixture. Next, blend the cocoa powder into the mixture to complete the smooth texture.
Blend liquid stevia and vanilla extract into the mixing bowl. Then, use a regular spatula to fold the cold whipped cream by hand into the bowl. Once the mixture is folded into a creamy chocolate pudding consistency, set it aside while you prepare the other tools you need to make the popsicles. Fill either a pastry bag with a round tip attached with the chocolate popsicle mixture or a simple Ziploc bag with a small corner cut off.
Choose the popsicle sticks you’ll be using, and line them up with space between them on a tray lined with parchment paper. First, squeeze the popsicle mixture from left to right in a short zigzag pattern from the top of each stick to about ¾ of the way down to create a sturdy popsicle base. From there, you can create different shapes and designs, as long as they adhere to the base you made. Freeze the popsicles for 30 minutes before eating.