Add the milk, yogurt, lecithin, apple cider vinegar, almond powder, nutritional yeast, salt and turmeric to your blender or food processor and set aside.
Melt the coconut oil until just melted (not hot) then stir in the neutral oil. It’s easier if the oils are in a cup with a spout on it as they’re going to be slowly poured into the blender/food processor.
Blend the milk mixture, stopping to scrape the sides as needed, until completely smooth. Then as it’s still running, slowly stream in the oils.
Once they’re all poured in, add the xanthan gum and blend well. Stop, scrape down all the sides and blend again for a few seconds.
Pour the butter into a mold or freezer-safe container of your choice (silicone molds, loaf pans lined with parchment, tupperware-type container, etc.) Instead of large containers I prefer smaller ones so it’s easier to just take out what I need.
Place in the freezer overnight (or at least 6 hours) to solidify then transfer what you want to the fridge and keep the rest tightly wrapped in the freezer.