Margarete
I have made this recipe many ways.  I have a child with allergies so I had to switch alot .... They are wonderful.  I guess you could call them vegan when I change....I've used soy milk (vanilla),or rice milk (vanilla), changed some of the flour to spelt flour, used smart balance light instead of butter (NOT Melted), and used egg replacer (with the soy or rice milk-not water) instead of eggs.  Also, Used about 2 to 3 Tablespoons of organic sugar (using your own desired taste). I have tripled and even made more of these at once.  If using more than a double batch DO NOT use more than 2 teaspoons of salt. My family loves these.