This creamy mushroom sauce is a simple, tasty addition to any holiday meal. It is so easy that even a weeknight dinner can be made special with little effort. It adds a rich, inviting flavor to dishes like prime rib, chicken, pasta, and roasted veggies. If you’re looking for a no-fuss way to elevate a dish without adding stress to an already busy season, this sauce is a keeper.
Some years I don’t want turkey for both Thanksgiving and Christmas. This year we decided on Garlic-Crusted Prime Rib for Thanksgiving. I created this creamy mushroom sauce to spoon over the roast, and it truly elevated the meal. I was pleasantly surprised when my daughters came back for seconds and thirds. I expected they would take only the obligatory bite. We enjoyed it so much that I immediately started thinking about all the ways this sauce could be used. Not even a week later, I made another batch and tried it over pasta and steelhead trout, and it was just as delicious. It’s one of those inviting, no-fuss sauces that fit right into the “real food for real life” rhythm, especially during the busy holiday season.
Easy Creamy Mushroom Sauce for Prime Rib, Chicken, or Pasta
Ingredients
Instructions
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Heat the butter and olive oil in a medium skillet over medium heat.
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Add the onions and cook until soft, about 6–8 minutes, stirring often. If the onions begin to caramelize before they soften, add 1 tbsp of the broth.
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Add the garlic and cook until fragrant, about 30 to 60 seconds.
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Add the mushrooms, stirring occasionally. Season with salt and pepper. Sprinkle in the cornstarch and make sure it is fully incorporated to avoid lumps. Cook until the mushrooms release their juices and brown slightly.
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Add the broth, Dijon mustard, and thyme. Simmer until the sauce thickens
Note
Tips
As written, this recipe makes enough to spoon over 4 to 6 servings of meat. If you plan to use it for pasta, double the recipe.
Serve over steak, chicken, potatoes, or pasta. It even works beautifully as a simple side dish. My daughters usually don’t care for mushrooms, and they still kept coming back for more.
Small to medium mushrooms work best. Baby bellas offer the best flavor and texture.
Grocery List by Department
Produce
½ small onion
3 cloves garlic
½ pound mushrooms (baby bella or white button)
Fresh thyme (optional, but recommended)
Dairy
Butter
Pantry / Dry Goods
Olive oil
Salt
Black pepper
Dijon mustard
Cornstarch
Broth / Canned Goods
Chicken broth or vegetable broth
