What kind of glass paint is safe to use on dishes that will come into contact with food?

I’ve done a bit of decorative glass painting and would like to do a set of martini glasses and appetizer plates, but I don’t know what kind of paint I should use. Even my non-toxic paints have a warning that says “do not use on surfaces that will come into contact with food.”

Does anyone know a specific brand that is safe for this kind of project? Or maybe there is a protective glaze I don’t know about…? Any help is appreciated!