1/2 cup mayonnaise (preferably Japanese)
2 tbsps hot sauce (sriracha, plus more to taste)
1 tsp lime juice (freshly squeezed, optional)
In a small bowl, mix together mayonnaise, Sriracha, and lime juice. Taste and add more Sriracha to desired spiciness. Serve immediately or transfer to an airtight container and store in refrigerator for up to a month.