Add the sherry and cook until it has evaporated. Set the mushroom mixture aside to cool ... in the pan you used to brown the meat. Add the onions and cook over a medium-low heat to soften.

It's ever-so-slightly more complex with the addition of mushrooms ... and let the onions fully caramelize, which can take up ...

Cook until onions are clear. Increase heat to medium high and add the mushrooms. Cook 5-7 minutes until mushrooms are tender and most of the liquid has evaporated. Add the sherry, salt ...