Mocassin Joe wrote:

> Before my mother passed away I asked her for her landmark stuffed mushroom
> recipe. She gave it to me on the condition, "you can never give my recipe
> out". I agreed.

By saying out, I would presume that she meant out of the family. So far,
so good.

> Now my wife has decided, that she is in charge of making this recipe.

Would she pass it on to friends? If that is the case then you, via your
wife have passed the recipe on. Or out.

> She
> looked it up in my personal cookbook. What she doesn't know is that I left
> out a "secret" ingredient.
>
> Naturally the dish doesn't come out as expected.
>
> What should I do??

It all depends on my comment above. You are between a rock and a hard
place here. Who do you have the most loyalty to? If it is your mother,
then you don't pass on the secret ingredient until your wife agrees to
keep it secret. If she doesn't then don't pass on the secret ingredient.
If she does agree (this is something the best chefs do) then let her
know what it was and tell her to keep it a secret for your mothers memory.

Dave