I have a question about the recipe "Mushroom Bread Pudding" from feastingonart.
I think that must be a typo. I'd use a yellow onion.
NeuB -- I hear you, but if you look up the recipe, you'll see that the author has you saute the onion in the second step, so the "brown onion" in the ingredient list does not refer to a cooked onion. I'm still not sure what she meant by brown onion. Also, we don't edit our member's recipes unless they become finalists or community picks, and even then, only lightly for clarity.
A brown onion is the British name for a yellow onion.