Add 1 Tbsp of EVOO, 2 yellow onions-sliced, salt and pepper to taste sauté on low for 10-12 minutes stir frequently.
Add beef broth to moisten. Once the onions are softened add 1 Tbsp of white sugar and turn up heat for 1 minutes stir constantly to avoid burning.
Add in remaining beef broth and cook on low-med heat for 5 minutes.
Add in mushrooms and cook for 2 additional minutes. Cut heat off; add in 2 Tbsp of butter additional salt and pepper if needed and stir well. Serve over meat of choice.