Hi, Mattie, and thank you for your amazing vegan recipes. I want to make your Vegan Butter but would prefer using homemade soy milk due to GMO issues. Do you make your own or use packaged? I'm asking because packaged non-dairy milks usually contain xanthum gum or some other emulsifier. If you're using packaged and I'm using home made should I add extra xanthum gum or soy lecithin? Your advice is greatly appreciated.