In a saucepan, melt butter over medium heat.
- Add heavy cream and bring to a gentle simmer.
- Stir in crumbled Gorgonzola cheese, allowing it to melt into the cream.
- Add chopped walnuts and cook for a few minutes until the sauce thickens slightly.
- Season with salt and pepper to taste.
- Serve the sauce over steak, letting the bold flavors of Gorgonzola and the texture of walnuts elevate the dish.