Step 1

Preheat the oven to 225 degrees F (110 degrees C).

Step 2

Mix salt, pepper, paprika, garlic powder, cayenne, dried rosemary, and fresh rosemary together in a small bowl.

Step 3

Place tri-tip in a baking pan. Season generously with the spice rub until both sides are completely covered.

Step 4

Bake in the preheated oven until an instant-read thermometer inserted into the thickest part reads 130 degrees F (54 degrees C) for medium-rare, or until desired doneness, 1 1/2 to 2 hours. Flip meat over halfway.

Step 5

Cover pan with aluminum foil and let meat rest for 20 minutes. Remove tri-tip to a cutting board and cut into 2 pieces along where the grain changes direction. Slice meat across the grain and transfer to serving plates.

Step 6

Mix beef broth in with the pan drippings and drizzle over the slices.