Put boiling water into a heat-proof bowl. Sprinkle the gelatin on top and let it rest for 10 minutes. Stir and ensure the gelatin is well-incorporated. If it is still grainy, place the bowl in the microwave and cook for 30 seconds. Stir again.
Pour cream into a blender jar. Add the gelatin mixture and beat until the mix is creamy and well blended, stopping to scrape the sides down to get all the gelatin crystals mixed in as needed. Do not over-blend, or you will have jello butter from that whipping cream turning into butter (Ask me how I know this.) About 30 seconds in a high powered blender is all you need.
One note about popsicle molds. I have tried so many popsicle molds, it's a little crazy. I now use two models, and this Zoku pop mold is the one I used to make these popsicles. I like that the mold stands up by itself, and it helps release the pops very easily. It's also a lot easier to clean than some of the others I've tried so I would recommend these.
Do not over blend the gelatine mixture! If you over blend the mixture it will end up turning into jello butter, which is certainly not what we're going for here. About 30 seconds in a high powered blender is all you need.
If you're in need of a good, solid blender, check out Vitamix Blenders. They're wonderful blenders and they're what I use in my own kitchen.
Make absolutely sure the gelatin is well dissolved before you freeze them. Hot/warm water helps a lot with this process, but nothing beats good old fashioned elbow grease for stirring.