This is the sauce that'll make you weak in the knees! This Low Carb Mushroom Sauce without Cream is thick, rich, and irresistible. The mushrooms are seared with onions and garlic until they are a perfect deep brown color and salty, nutty, earthy flavor. Thyme brings in more earthiness and a fantastic herbed backdrop. Then vegetable broth is added to create the start of a delicious sauce. Finally, a cornstarch slurry is whisked in to thicken it up to a glorious silky, and gluten-free creamy finish! No heavy cream needed!
Slice the mushrooms. Dice the onions. Mince the garlic.
Preheat a large skillet and drizzle or spray with extra virgin olive oil.
Add the onions, garlic, mushrooms, and thyme to the skillet and stir to mix together. Then spread out into a layer so as many mushrooms as possible are touching the skillet bottom.
Let sit without stirring for about 3-4 minutes until the mushrooms get a beautiful browned sear. Then stir so that the other side of as any mushrooms as possible get a sear.
Add a pinch of salt and ground black pepper and let the mushrooms cook down for another 5 minutes.
While the mushrooms are cooking, making the slurry by mixing the cornstarch into the cold milk until completely dissolved.
Add the Vegetable broth and stir to scrape up all of the browned bits from the bottom.
Add the cornstarch slurry, as this is the thickener. Whisk to ensure you don't get any clumps. It will thicken pretty fast. Bring back to a light simmer for 5 minutes.
Serve and enjoy!!