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Creamy Mushroom Sauce

An incredibly easy and wonderfully creamy mushroom sauce that's perfect for busy weeknights, transforming simple ingredients into something spectacular. It's a delicious topping for pasta, chicken, steak, and more.
Prep Time 10 minutes
Cook Time 20 minutes
Servings 4 servings

Equipment

  • Skillet

Ingredients
  

Main ingredients

  • 2 tablespoons unsalted butter
  • 1 tablespoon cooking oil olive oil or a neutral vegetable oil
  • 12 oz mushrooms sliced, cremini mushrooms recommended
  • 1 onion chopped, yellow or sweet onion
  • 0.5 cup heavy cream
  • 0.5 cup milk whole milk recommended
  • 1 teaspoon mixed herbs dried Italian seasoning, herbs de Provence, thyme, rosemary, or parsley
  • salt to taste
  • pepper to taste, freshly ground recommended

Instructions
 

  • Melt the butter and cooking oil in a skillet over medium heat until the butter is foamy.
    2 tablespoons unsalted butter
  • Add the chopped onion and cook, stirring occasionally, until soft and translucent, about 5 minutes.
    2 tablespoons unsalted butter
  • Add the sliced mushrooms to the skillet. Let them sit for a minute or two without stirring to get a nice golden-brown color. Continue cooking and stirring until tender and moisture is released, about 8-10 minutes.
    2 tablespoons unsalted butter
  • Pour in the heavy cream and milk. Stir everything together, scraping up any browned bits from the bottom of the pan.
    2 tablespoons unsalted butter
  • Sprinkle in the mixed herbs. Bring the sauce to a gentle simmer and cook for about 5 minutes until it thickens.
    2 tablespoons unsalted butter
  • Season with salt and pepper to your liking. Taste and add more if needed.
    2 tablespoons unsalted butter

Notes

For a thicker sauce, simmer gently or use a cornstarch slurry. Prep ingredients ahead for even faster assembly. This sauce can be stored in the refrigerator for 3-4 days or frozen for 2-3 months.