Step 1

Season the beef sirloin tips with salt and pepper, ensuring they are well-coated.

Step 2

Preheat your grill to medium-high heat.

Step 3

Grill the beef tips for about 3-4 minutes on each side, or until they are nicely browned and cooked to your desired level of doneness. Remove from the grill and set aside.

Step 4

Melt the butter in a large skillet over medium-high heat. Add the chopped yellow onion and sliced mushrooms. Sauté until the onions are translucent and the mushrooms are tender.

Step 5

Stir in the all-purpose flour and cook for 1-2 minutes, stirring constantly to avoid lumps.

Step 6

Gradually add water to the roux, stirring constantly until the mixture thickens into a smooth sauce. Add the Worcestershire sauce, Maggi sauce, Better Than Bouillon beef base, garlic powder, and onion powder. Stir well to combine.

Step 7

Simmer the sauce for about 5 minutes to thicken and reduce. Season with salt and pepper.

Step 8

Serve the beef tips with gravy and a side of mashed potatoes. Enjoy!