For fresh corn, cut the kernels off the cob. For frozen corn, take the bag directly from the freezer, no need to thaw. Juice the limes to get 3 tablespoons of juice.
Melt butter in a large pan over high heat. Add garlic and red onion, stirring for 2 minutes. Add corn and cook for 10 minutes, stirring occasionally, until browned. If you stir too frequently, the corn will not brown. Season with salt and pepper. Transfer corn to a large bowl and let it cool completely (see note 3).
In a small bowl, whisk together fresh lime juice, mayo, sour cream, chili powder, paprika, and ground cumin until well combined. Add a tiny pinch of salt and pepper. Refrigerate until ready to use.
Add green onions, cilantro, and jalapeño to the cooled corn. Take the dressing from the fridge and gently fold it into the corn. Taste and adjust seasoning as needed. Top with crumbled cotija cheese and enjoy with tortilla chips.
Video
Notes
Note 1: For the sweetest flavor, use fresh sweet corn and cook or refrigerate the ears of corn as soon as possible. If you can’t cook it right away, store it in the fridge. Otherwise, frozen corn works great.Note 2: Remove the seeds and finely mince your jalapeño. Adding jalapeño is optional.Note 3: To cool the corn quickly, spread the cooked corn on a plate or sheet pan and place it in the fridge. Storage: Best enjoyed fresh, but you can refrigerate for up to 3 days. This dip doesn’t freeze well.