This delicious mushroom gravy is the perfect accompaniment for mashed potatoes, pot roast, salisbury steak, meatloaf, and more. Thickened with an arrowroot starch slurry, this flourless gravy is a great way to upgrade paleo and Whole30 recipes to comfort food status.
In a large saute pan, warm butter or ghee over medium-high heat. Add the mushrooms, garlic, onion, and rosemary, and cook until the mushrooms soften and everything begins to brown.
Stir in the beef broth and coconut aminos (or New Primal marinade), and lower the heat to a simmer.
Meanwhile, add the arrowroot starch to a small bowl and whisk with enough water to make a smooth paste-like slurry.
Then, whisk the slurry into the simmering gravy until fully incorporated.
Let the gravy continue to simmer until it is thickened to preference (about 10 minutes).
Serve right away or let cool and keep stored in an airtight container in the fridge for 7-10 days.
Notes
For Whole30 purposes, cook the mushrooms and aromatics in ghee or avocado oil (as butter isn't compliant).