Prep your aromatics: Mince the garlic and grate the ginger. If using fresh chilli, remove seeds for less heat and chop finely.
Whisk the base: In a medium bowl, add peanut butter, soy sauce, lime juice, rice vinegar, and maple syrup or honey.
Add the heat and aroma: Stir in the chilli paste (or sriracha/fresh chilli), garlic, and ginger.
Add sesame oil if using.
Thin to your liking: Whisk in warm water, 1 tablespoon at a time, until you reach your desired consistency. For dipping, keep it thicker; for drizzling, add more water.
Taste and adjust: Add more lime for brightness, soy for saltiness, syrup for sweetness, or chilli for heat. Finish with a pinch of salt if needed.
Serve or store: Use immediately or transfer to a jar.
The flavor deepens after 15–20 minutes as it rests.