Use a paper towel to clean the mushrooms as best
as you can.
Heat a pan on medium high. Add oil and half of the vinegar, add the
mushrooms cap side down. Cook one to two minutes before turning. Add
the rest of the vinegar. Cook until they turn a golden-brown on the
cap-side, turning a few more times if you've like. The vinegar-and-oil
should be a murky brown color by the time they're done.
Place cheese on the cap and let it melt before placing on a bun with
mayo and onion.
|
