Chef John's Mayo Method Steak Sauce
This is my patented method for quick, easy steak sauces. The formula is mayonnaise plus salty, plus spicy, plus acidic, plus herby equals awesome. All ingredients are to taste.
Salt could be capers, soy sauce, fish sauce, or anchovies. The acid could be lemon juice, lime juice, or many kinds of vinegars. Any chile paste or hot sauce will work. Any herb will work.