I don't know who created it, all I know is I gotta have it with steak! I literally can not eat a steak without it, so it has been my life's mission to recreate it to make at home (although now some kind soul has bottled it, so I can buy it in a pinch).
Usually in restaurants they pour the sauce over the steak, so it goes all over the plate and soaks into the potatoes...it's excellent on potatoes, btw. I like to put mine in a small dish and dunk each piece of delicious beef.
This is a thin sauce, sort of like a revved-up buttery au jus.
1/2 cup water
1/4 cup butter
2 Tablespoons Worcestershire sauce
1 Tablespoon balsamic vinegar
1 Tablespoon soy sauce
1 teaspoon instant beef bouillon granules
1 teaspoon garlic powder
1. Place all ingredients into a small saucepan. Heat over medium heat until bouillon is dissolved and butter is melted, stirring occasionally.
Serve warm with, steaks, chops, veggies, potatoes, mushrooms...anything!