Run out of butter but have heavy whipping cream?? make butter in your Nutribullet..
All you'll need is your nutribullet and heavy whipping cream.
Put heavy whipping cream in nutribullet with your extractor blade and turn it on and it becomes whipped cream within only a few seconds and you'll know it has become whipped cream because you'll hear it airarate and will not be grabbing the cream anymore.
Now you'll want to put on your milling blade, then turn it on again and pick up the nutribullet and bump it down into the counter a few times until you hear the blade grab the cream again. After it starts to grab it will start to produce some liquid (buttermilk). Which will help it get going but you still might have to bump it into the counter a few more times. Once it grabs good and continues going it only takes a few seconds, so you'll want to keep checking it until it looks like the pic above. Make sure you keep checking it otherwise you could go to far and it will turn back into complete liquid again. If that happens that batch is pretty much junk, so you might want to start with small batches to experiment so you know exactly want is going to happen so you don't waste all your cream..
Once you have something like what's on the first pic in this step you'll want to dump off the liquid (which is buttermilk that makes great pancakes so you might want to dump it off into another container and put in the fridge for pancakes later.). Then scrape your glob of butter out of your nutribullet's container into a bowl. Then run cool water over it and squeeze it and keep running water on it and dumping it out until the water runs out clean and not milky. Make sure your water comes clean because if you don't get all the buttermilk out, the butter will spoil very quickly. Now you'll want to gather your butter out of the bowl and squeeze it to get the water out of it.
Now you have finished butter to put on your buttermilk pancakes.... Or you could add a small amount of honey or cinnamon and sugar to have a sweet butter like at Texas roadhouse.. But if you don't want sweet butter just add a little salt...