Allergen Free Yogurt Recipe | Funky Food--Feeding Kids Allergic to Food She makes this in her crockpot!!! And it is gf,dairy/caseinfree, soy free. etc, depending on non-dairy milk you choose to use. And you can use alittle boughten non-dairy yogurt first time or buy probiotics. Just be sure whatever you do use is safe for your allergies!!!