1 pound of brown or white mushrooms, or a mix of both
4 tablespoons of good extra virgin olive oil, or more if needed
3 tablespoons white wine vinegar
2 cloves of garlic, minced
1/4 cup of red onions or shallots, finely chopped
2 tablespoons of fresh oregano, finely chopped
2 tablespoons fresh thyme, finely chopped
1/2 teaspoon of salt
1/2 teaspoon black peppercorns

1/4 teaspoon coriander seeds (optional)