I have no clue where this recipe comes from. Could be my mom's collection but I think I'd be a lot more excited about it if it were. I always associated marinated mushrooms with my gramma's guests coming over as a child. My gramma was from an entirely different era in Sacramento history than my own and I think this may have been a customary bring-along among their set. "Make not the marinated mushrooms in the summertime, for they shall be Brought Along." A good policy.
These stand well alone or placed in salad though something (and we suspect it may be the vinegar or the tarragon or the two in combination) does strange things to the palate, especially when combined with avacados in salads.
1 medium clove
1 1/2 tsp
Mix oil, vinegar and seasonings. Toss gently with mushrooms and onions and marinate for 4 to 6 hours.