>but I am not aware of any powdered milk substitutes (though there may be
>some available in the US, for all I know).  Does anyone (particularly the
>OP) know where I might find some, in order to make this recipe.

Sure - soy formula.  We use this all the time where powdered milk is called
for, and also use it as a regular milk replacement.  We use Frisosoy, and it
works great, plus it's nutritious too.

Barbara