“I have a friend who would occasionally put sour cream on his steak. I tried it once and it was pretty good.”
Nairobi used to have a restaurant called, “The Steak House”. (seriously!)
They served the absolute finest Bearnaise sauce on the planet! Ostensibly meant for the veggies (green beans, IIRC), this sauce was so good that many put it on the veggies, the fries and, yes, even the steaks!
Man, what a taste delight!
A favorite steak around Des Moines is topped with a sauce of butter, lots of garlic, and Italian herbs. ‘Steak de Burgo’.