For the Sauce:

• ½ cup soy sauce (low-sodium if preferred)
• ¼ cup brown sugar (or honey for a natural sweetener)
• Juice of 1 lime (plus zest for extra brightness)
• 2 tbsp pineapple juice (or orange juice for added sweetness)
• 2 cloves garlic, minced
• 1 tsp grated fresh ginger
• Optional: Red pepper flakes for heat