Will there be any other changes if I add vanilla to a dough recipe?!
It will add a vanilla flavour, and iff there is egg in the recipe, it will help the result not to taste too eggy, like baking sometimes does by accident. Vanilla won't interfere with anything else though, you're safe.
yes you will get this little feel of vanilla taste in your mouth if u like vanilla than add it it dosent make a big difference
look on cooking books and websites