Step 1

Heat the oil in a large cast-iron skillet over medium-high heat until shimmering. Add the corn and cook, stirring occasionally, until toasted and golden brown, about 15 minutes. Add the garlic and cook for 1 minute more. Remove from the heat and let the corn cool for a few minutes.

Step 2

Transfer the corn to a large bowl. Add the cilantro, jalapeño, Cotija, mayonnaise, lime juice, and chili powder, and stir to combine. Top with more Cotija and serve warm or at room temperature.