MIAMI (CBSMiami) – An old French tradition has finally made it into Miami’s cutting edge culinary scene—L’Entrecote de Paris. The charming new bistro recently made its U.S. debut just off Brickell Avenue.

Famous for its one-dish menu, Steak Frites, is served with a mouthwatering 21-ingredient super-secret sauce, paired with a salad, the concept started in Switzerland  back in 1912 and moved to Paris by the 1940s where it still remains.

Again, it’s the same meal every time: First the salad with walnuts and cherry tomatoes topped with a mustard dressing. Then a nine ounce steak topped with a secret sauce that’s basically kept in a vault—nobody will ever tell how it’s made.

“Everyone loves the sauce,” said General Manager Gerard Herrison, “I don’t like onions or garlic and I love the sauce.”

“So I just got two of the ingredients: onions and garlic,” said CBS4’s Lisa Petrillo.

Not even the chef knows all of the 21 ingredients in the sauce. The owner comes to town every two months just to prepare it and protect the recipe.

“It comes dry and then we add ingredients to liquefy it,” said Gerard.

Petrillo asked if it were butter or cream that’s added.

“Yes, butter,” said Gerard.

“Ah, so now we know there’s butter…another ingredient,” said Petrillo.

The nine ounce dinner Steak Frites and salad is $26 per person. Sides offered include a cheese platter, desserts and, of course, wines.

For lunch the steak is smaller, seven ounces, and is $19 per person.

As the same plate comes out for guest, after guest, it begs the question if a one-dish menu could work in a town like Miami?

“There’s so much buzz around this concept and I have people that have come in yesterday and they were screaming and so excited for this. I think it’s going to be a success for us,” Gerard said.

Lisa Petrillo, after tasting the one dish menu, said, “The special sauce is delicious!  Oui, oui it’s magnifique,” said Petrillo.

L’Entrecote de Paris is also offering nightly Happy Hour and light bites. Quiche and a small salad is the dish du jour at the bar.

For more information, visit the restaurant’s website

Lisa Petrillo