Serve your Pad Thai just like they do in Thailand with these garnishes set out so that everyone can customize their dish at the table: Roasted, unsalted peanuts - Hello, extra crunch! White sugar - Add sugar if you like a sweeter Pad Thai. Fish sauce - Pad Thai fish sauce adds more umami depth. Lime wedges - Use lime for extra acidity and brightness. Red pepper flakes - If you like spicy food, this is how you make a spicy Pad Thai.