Steak Dianne Sauce

Hi all,
Does anybody have a yummy Steak Dianne Sauce they they’d like to share? Thanks to Kitchen Witch , it’s a joy to read your suggestions/recipes to others requests. It’s helped me a lot, too!

Wow, so many variations. They all sound yummy, except I HATE mushrooms! I have had in the past what I would call the best steak dianne sauce and I have been longing to find something close to it - so thank you, I’ll try your ideas and let you know which one worked for me.
Have a great day.