01 - Preheat oven to 400°F. Line a baking sheet with parchment paper or foil.
02 - In a small saucepan, combine pineapple juice, soy sauce, honey, vinegar, ginger, and garlic. Bring to a simmer over medium heat.
03 - Stir in cornstarch slurry. Simmer for 2–3 minutes, stirring frequently, until the glaze thickens. Remove from heat.
04 - Place salmon fillets on the prepared baking sheet. Reserve 2 tablespoons of glaze for serving, then brush the remaining glaze generously over the fillets.
05 - Roast in the oven for 12–15 minutes, or until salmon is just cooked through and flakes easily with a fork.
06 - Remove from oven. Brush with the reserved glaze. Garnish with fresh cilantro or parsley and diced pineapple if desired.
07 - Serve immediately with rice, quinoa, or steamed vegetables.