01 - Heat a grill pan or cast-iron skillet over high heat until smoking hot.
02 - Place the trimmed scallions on the hot pan and cook, turning occasionally, until deeply charred and blackened in spots, about 3 to 4 minutes. Transfer to a plate and let cool slightly.
03 - Roughly chop the charred scallions into small pieces, reserving a few green tops for garnish if desired.
04 - In a medium mixing bowl, combine the sour cream, Greek yogurt, mayonnaise, minced garlic, soy sauce, sesame oil, kosher salt, black pepper, and lime juice. Stir until smooth and well blended.
05 - Fold in the chopped charred scallions and 2 tablespoons of chili crisp. Stir until evenly distributed throughout the mixture.
06 - Taste the dip and adjust the salt or lime juice as needed to balance the flavors.
07 - Transfer the dip to a serving bowl. Swirl extra chili crisp on top and scatter sliced scallion greens over the surface. Serve chilled or at room temperature alongside chips, crudités, or grilled meats.