Husk and clean fresh corn on the cob
Boil, grill, or roast the corn until tender and lightly charred
Mix mayonnaise and sour cream or Mexican crema
Brush the hot corn with the mayo mixture
Roll or sprinkle the corn with crumbled cotija cheese
Dust with chili powder or tajÃn
Add a squeeze of lime juice
Garnish with chopped cilantro if desired
Serve immediately