Combine mayo and sriracha: In a small bowl, mix mayonnaise and sriracha until smooth. Adjust the amount of sriracha depending on how spicy you like it.
Add flavor boosters: Stir in lime juice and garlic powder if using. Taste and add a pinch of salt if needed.
Optional add-ins: Add a few drops of sesame oil or chopped green onions for extra flavor.
Chill (optional): For best flavor, let the sauce rest in the fridge for 10–15 minutes, but you can use it immediately.
Serve: Drizzle on sushi, sandwiches, burgers, fries, or use as a dipping sauce.
