01 -
Melt butter in a skillet over medium heat, then add mushrooms and garlic. Cook until mushrooms are golden brown and fragrant.
02 -
Pour in chicken broth, heavy cream, dijon mustard, and Worcestershire sauce. Stir to combine.
03 -
Cook for 5-8 minutes, stirring occasionally, until sauce has thickened to desired consistency.
04 -
Adjust seasoning with salt and pepper to taste. Serve immediately over steak.