(OPTIONAL) If making the masago, mix the sriracha and hot water in a small bowl. Then add the couscous and leave it covered for about 5 minutes, or according to the package instructions. Once done, fluff using a fork or just give it a good stir.
In a small bowl, combine the mayonnaise, sriracha, and masago (if using). Transfer into a sauce bottle to drizzle, or just use it as a dipping sauce for your sushi, fries, and whatever you want!
Notes
Top Tips
Add more sriracha if you'd like it spicier!
This spicy sushi sauce is already great even without the masago so feel free to skip it!
If your sauce bottle has a relatively small opening, skip the masago. Otherwise, the masago might get stuck inside the bottle.