Slow Cooker

Optional step – add oil to a large pan over medium-high heat. Season roast with garlic powder, salt, rosemary, and pepper. Add roast to pan and sear, a few minutes each side until browned. Remove roast from pan. Add mushrooms, onions, and garlic and cook a few minutes until soft. Add to slow cooker. Continue on to step 2.  

1. Season roast with garlic powder, salt, rosemary, and pepper and add  to the slow cooker along with the garlic, mushrooms and onions.
2. Pour broth on top.
3. Cook HIGH 3-4 hours or LOW 6-8.

Instant Pot

1. Turn on the Instant Pot and select Sauté. Once Hot add oil to the pot.
2. Season beef with garlic powder, salt, rosemary, and pepper. Once the oil is hot, add the beef and sear until browned, 2-3 minutes on each side. Remove beef from the pot and set aside.
3. Add mushrooms, onion, and garlic and cook for a 2-3 minutes, stirring frequently.
4. Add the broth and deglaze the bottom of the pressure cooker by scraping all the bits off with a wooden spoon.
5. Add the beef back to the pot. Close lid and seal valve. Set high pressure and cook for 35 minutes.  Natural release pressure for 10 minutes then manually the remaining pressure.