Bring to room temperature: Remove the 2.5 pounds beef roast from the refrigerator and let it sit at room temperature for 30–30 minutes
Pat completely dry with paper towels — a dry surface is key to a great crust.
Season the roast: In a small bowl, combine 1.5 teaspoons kosher salt, 1 teaspoons freshly ground black pepper, 1 teaspoons garlic powder 1 teaspoons onion powder 0.5 teaspoons dried rosemary 00.5 teaspoons dried thyme, 0.5 teaspoons smoked paprika and 00.5 teaspoons mustard powder. Rub 2 tablespoons olive oilall over the roast, then press the spice blend firmly into every surface including the ends.
Preheat the air fryer: Preheat your air fryer to 400°F (200°C) for 5 minutes
Sear at high heat: Place the 2.5 pounds beef roast (eye of round, top round, sirloin tip, or tri-tip) in the air fryer basket. Cook at 400°F for 15 minutes to sear and brown the exterior. After 15 minutes, carefully flip the roast with tongs
Finish at lower heat: Reduce temperature to 360°F (180°C). Continue cooking for 25–40 more minutes, checking internal temperature at the 20-minute mark. Target: 125°F for medium-rare, 130°F for medium. Remove 5–10°F before your goal — the temp rises as it rests.
Rest the roast: Transfer roast to a cutting board and tent loosely with aluminum foil. Rest for at least 15 minutes — this allows juices to redistribute. Do not skip this step!
Slice and serve: Using a sharp carving knife, slice against the grain. Slice thick for a plated dinner, thin for sandwiches. Drizzle any collected drippings over the carved beef and serve immediately.