Secret "Cafe" Salad dressing recipe (moved from Boston board)
Story is similar to the one's floating around about the famous tip marinade but I tried this and it seems legit.
1 cup Olive Oil
3/4 cup red wine vinegar
1/4 cup lemon juice
2 tbs sugar
2 tbs dried italian seasoning
1/2 tsp salt
1/2 tsp course ground pepper
The Newbridge Cafe keeps their steak tip marinade secret and they apparently only let employees know parts of it. There are a number of stories and a coca-cola based marinade which is regularly presented as the secret recipe (its not), etc. Sort of Boston Area lore or urban legend, which is the tie to this board rather than home cooking. The above is fairly similar to "italian dressing" type tip seasonings, with the sugar to give a bit more browning. I use very similar proportions of acid and oil on my own tips, but with different seasonings.
For something relevant to the board, I saw a sign from McKinnon's in Somerville listing their marinades and seemed to suggest they might sell them separately now, but didn't see any out there or get to ask anyone. Some folks have sworn by their marinades, but prefer to select the tips themselves (for McKinnon's original is too sweet, Dom's in Medford is much better, I think the italian is decent though).