Peel back the husks on each ear of corn but DO NOT remove them completely—leave the husks attached at the base to create a natural "handle" for holding the hot corn later. This is the traditional street vendor presentation. Pull off and discard all the silk (the stringy fibers between the kernels and husks). If you prefer a cleaner presentation or easier eating, you can remove the husks entirely and insert wooden skewers or metal corn holders through the core. While preparing corn, preheat your outdoor grill (charcoal or gas) to HIGH heat—about 450°F-500°F (230°C-260°C). For charcoal grills, wait until the coals are glowing red-orange with white ash covering them. For gas grills, preheat all burners on high for 10 minutes with the lid closed. The grill grates should be very hot—if you hold your hand 6 inches above the grates, you should only be able to hold it there for 2-3 seconds before the heat becomes uncomfortable. This high heat is essential for proper char and Maillard reaction in Mexican Street Corn.

Place the husked corn ears directly on the hot grill grates over DIRECT high heat. DO NOT wrap the corn in aluminum foil—you need direct contact between corn kernels and heat source to develop char marks and caramelized flavor through the Maillard reaction. Grill the corn, rotating every 2-3 minutes using long-handled tongs, for a total of 10-12 minutes (up to 15 minutes if your corn ears are very large). You want deep golden-brown char marks and some blackened spots covering approximately 50-60% of the kernel surface. The charred spots are not burnt—they are caramelized natural sugars and melanoidins (flavor compounds created by the Maillard reaction between sugars and amino acids). The kernels should blister slightly and you will hear popping sounds as internal moisture turns to steam and escapes. Rotate the corn frequently to achieve even charring on all sides—uneven charring results in some bites tasting plain while others are intensely flavored. Do NOT overcook the corn—the kernels should still have a slight crisp, juicy snap when bitten into, not turn soft, mushy, or mealy. When the Mexican Street Corn is evenly charred on all sides with beautiful brown-black grill marks, remove it from the grill. Work QUICKLY while the corn is still very hot—the next steps are time-sensitive.

While the corn is grilling, prepare the creamy sauce base. In a small mixing bowl, whisk together 1/3 cup mayonnaise, 1/3 cup Mexican crema (or regular sour cream), 2 tablespoons fresh lime juice, and 1-2 cloves of minced garlic until the mixture is smooth, creamy, and completely homogeneous with no lumps. The consistency should be thick and spreadable but not so thick it won't coat the corn—similar to thick pancake batter. If the sauce is too thick and pasty, thin it with a splash of milk (1-2 teaspoons at a time). If it's too thin and runny, add a bit more mayonnaise. Taste and adjust seasoning—add a pinch of salt if needed. The sauce should taste tangy, creamy, and slightly garlicky. Set aside until the corn is ready. The fat in this sauce (from mayo and crema) is essential—it acts as a carrier for the fat-soluble flavor compounds in the chili powder, lime zest, and garlic, creating a cohesive flavor delivery system that water-based sauces cannot achieve.

The MOMENT the corn comes off the grill (while still piping hot and steaming), use a silicone pastry brush, basting brush, or the back of a spoon to generously slather the creamy sauce all over each ear, coating every visible kernel. Work quickly and coat the corn while it's still very hot—this is critical. The heat from the corn slightly warms and thins the sauce, causing it to melt into the crevices between kernels and adhere tightly to the surface. If the corn cools too much before you apply the sauce (below about 150°F / 65°C), the cold surface will repel the fatty sauce and it will slide off in clumps instead of coating evenly. For best results, sauce one ear at a time immediately after removing it from the grill, rather than letting all the corn cool while you finish grilling. Apply a thick, generous layer—don't be shy. The sauce layer should be visible and creamy-white covering most of the charred kernels. This is authentic Mexican Street Corn technique.

Immediately after coating with sauce (while the Mexican Street Corn is still hot and the sauce is wet and sticky), hold each ear over a shallow plate or wide bowl filled with crumbled Cotija cheese. Roll the sauced corn in the cheese, rotating and pressing gently so the cheese adheres to the sauce all over the surface. Alternatively, use your hands or a spoon to sprinkle and press generous amounts of crumbled Cotija cheese all over the corn, coating it as heavily as possible. You want a thick, uneven, rustic crust of crumbly white cheese covering most of the creamy sauce layer. The residual heat from the corn will warm the Cotija cheese, releasing its salty, tangy aroma and softening it slightly, but it will NOT melt into a gooey mess—Cotija is a hard, aged cheese with low moisture content and tightly bound protein structures that hold their shape even when heated. This textural contrast (crunchy charred kernels + creamy sauce + crumbly cheese) is what makes Mexican Street Corn so texturally satisfying. Next, sprinkle Tajín Clásico seasoning or chili powder generously over the cheese-coated corn—about 1/2 teaspoon per ear, adjusting to your heat preference. The bright red-orange chili powder should create vibrant visual contrast against the white Cotija cheese. If using fresh cilantro, sprinkle chopped cilantro over the top now. Finally, serve the Mexican Street Corn immediately while still hot, with fresh lime wedges on the side. Instruct diners to squeeze fresh lime juice over their corn just before eating—the fresh lime acid "cuts" through the richness of the creamy sauce and makes all the flavors pop and sing.

Mexican Street Corn is best eaten immediately while hot—the contrast between hot charred corn, warm creamy sauce, and cool fresh lime juice is part of the magic. Serve with plenty of napkins (this is messy, hands-on eating—embrace it). If holding for a short time before serving, keep the corn in a warm (not hot) place loosely covered for no more than 15-20 minutes. Do NOT refrigerate and reheat—the texture suffers significantly. If you have leftovers, cut the kernels off the cob and transform them into Esquites (Mexican street corn salad served in bowls)—same flavors, easier to reheat.