– 1/4 cup balsamic vinegar – 1/4 cup brown sugar – 3 tablespoons vegetable oil, such as canola or avocado oil – 3 tablespoons soy sauce – 1 tablespoon minced garlic – 1 tablespoon minced ginger – 2 teaspoons crushed red pepper flakes, or more to taste – 1/2 teaspoon kosher salt – 1 1/4 pounds salmon filets, cut into 1-inch cube – nonstick cooking spray