Orange and Pineapple Beef

Directions

1. 1
   Put an oven rack in the center of the oven.
2. 2
   Preheat the oven to 400 degrees F. Spray a heavy baking sheet with vegetable oil cooking spray.
3. 3
   Set aside.
4. 4
   In a large skillet, heat the oil over high heat.
5. 5
   Season the beef with salt and pepper and brown on all sides, for about 5 minutes.
6. 6
   Transfer the beef to the prepared baking sheet and roast until an instant-read thermometer inserted into the thickest part of the meat registers 125 degrees F for medium-rare, about 40 to 45 minutes.
7. 7
   Remove the beef from the oven to a cutting board.
8. 8
   Cover the meat loosely with foil and let rest for 20 minutes.
9. 9
   Sauce: In a blender, combine the pineapple chunks and syrup, the orange juice, lemon juice, soy sauce, sugar, arrowroot, garlic, ginger, and 1/2 teaspoon salt.
10. 10
    Blend until smooth.
11. 11
    Heat the same skillet used for the beef over medium-high heat.
12. 12
    Add the sauce and scrape up the brown bits that cling to the bottom of the pan with a wooden spoon.
13. 13
    Simmer until the sauce thickens, about 5 minutes Season with salt, to taste.
14. 14
    Cutting across the grain, slice the meat into 1/4-inch thick slices and arrange on a platter.
15. 15
    Garnish with orange slices, if using.
16. 16
    Pour the sauce into a serving bowl and serve alongside the beef.