Mushroom Cream Sauce

Mushroom Sauce:
- 2 tbsp olive oil or unsalted butter
- 1 small onion (finely chopped)
- 12 oz (350 g) mushrooms (sliced; use cremini, button, or a mix
- 1 cup heavy cream or half-and-half
- 1/2 cup grated Parmesan cheese
- Salt and freshly ground black pepper (to taste)
- Fresh parsley (chopped, for garnish)
Sauté the Mushrooms:
- Heat olive oil or butter in a large skillet over medium heat.
- Add the chopped onion and cook for 2-3 minutes until soft.
- Add the sliced mushrooms, season with salt, and cook for 5-7 minutes until they release their moisture and are golden brown.
- Lower the heat and stir in the heavy cream. Add the thyme, nutmeg, and a pinch of black pepper.
- Let the sauce simmer for 3-5 minutes until it thickens slightly.
- Stir in the grated Parmesan cheese and mix until smooth. Adjust seasoning with salt and pepper.