Mushroom sauce for steak :
2 tbsp unsalted butter
½ tbsp olive oil
300g mushrooms (sliced)
Pinch of salt and pepper to taste
2 cloves of garlic minced
¼ cup of white wine ( can use chicken stock instead)
½ cup veg broth
1 cup heavy cream
½ cup parmesan cheese (grated)
2 fresh sprigs of thyme

Method:
Heat the oil and melt the butter in a saucepan over medium-high heat and add the mushrooms to cook until golden.
Add the garlic, salt, and pepper and cook until garlic is golden.
Add the white wine or chicken broth and stir scraping the sides and bottom of the pan until most of the liquid has evaporated.
Add the veg broth, cream, and cheese and stir. Let simmer over allow to medium heat do not let it boil rapidly. let simmer for 2-3 minutes until l it thickens.
Stir through the thyme and serve.