Ingredients:
Cooking Oil (olive or other)
Mushrooms
Garlic or shallots or cipollini onions, usually not more than one of those
Ham, bacon or pancetta, optional
White wine, sherry, Port or Madeira, optional
Butter
Salt
Parsley
Cream, optional
Heat the oil and mushrooms in a wide, heavy skillet over medium high heat. The mushrooms should all fit in the pan in a single layer with a bit of breathing room between them. (Otherwise, when the mushrooms start to heat up and release moisture, they will steam each other rather than brown. If you have a lot of mushrooms to do, work in batches.) Sometimes I add some bacon as well (like 2 slices, max, diced pretty small), for that extra umami kick. Keep it moving but refrain from stirring constantly.
When the mushrooms have taken on some color and are about halfway through cooking, it’s time to add the garlic or shallot or onion and a nice knob of butter. I also usually salt and pepper them at this point. Keep sautéing them until the alliums are golden and caramelized and starting to stick to the pan. (If you had added the butter and garlic in the beginning, they would be too burned by the end.)
Now it’s time to add the wine. Stir until completely evaporated. Your pan will look greasy again like it did before.
Just before turning off the heat add the minced parsley, not too much. If you want to turn this into a cream sauce, add the cream now, bring to a simmer and cook about 5 minutes longer.
Now you can serve it with the starch of your choice. I like toasted white artisan style bread or fresh egg pasta like homemade tagliatelle. (I use the packaged Bionaturae brand pappardelle when I feel lazy.)