The 1:1 mayo to crema ratio. 100 percent mayonnaise creates an overly heavy, greasy barrier on corn. Cutting it 1:1 with crema adds lactic acidity, lightness, and a silky drape that binds the cheese.
Lime zest, not just juice. The citrus oils in the peel hold aromatic terpenes that lime juice alone lacks, and they release the moment they hit hot corn.
Ancho, not generic chili powder. Generic chili powder carries garlic and onion fillers. Ancho delivers a deep, raisin-like smoky sweetness without harsh acrid heat.
