Orange and Pineapple Beef

Name: Orange and Pineapple Beef
Ingredients: Vegetable oil cooking spray; 3 tablespoons vegetable oil; 1 (4 to 5-pound) beef tenderloin, trimmed; Kosher salt and freshly ground black pepper; 1 (20-ounce) can pineapple chunks in heavy syrup; 1 cup orange juice; 1/4 cup fresh lemon juice (from 1 large lemon); 1/4 cup low-sodium soy sauce; 3 tablespoons sugar; 1 tablespoon arrowroot; 3 cloves garlic, coarsely chopped; 1 (1-inch) piece fresh ginger, peeled and coarsely chopped; 1/2 teaspoon kosher salt, plus extra for seasoning