Place vinegar, dijon, sriracha, vinegar, salt, and pepper in a food processor. Pulse to combine.

Slowly drizzle fat and oil into processor while pulsing to emulsify.

Variations; White vinegar, sambal oelek, lime, lemon, lemongrass, mirin, honey, peanut oil, sesame oil, ponzu, garlic, smoked paprika, chiles, ginger, parsely, cilantro, scallions, cumin, thyme, chiles, chile powder, cayenne, crushed pepper flakes, thai basil, brown sugar,