Char the Corn: Start by removing the corn kernels from the cobs and heat the vegetable oil in a large skillet over medium-high heat. Add the corn kernels in a single layer and cook until charred.
Prepare the Dressing: In a mixing bowl, combine the mayonnaise, Mexican crema, lime juice, chili powder, smoked paprika, and salt and pepper. Whisk until creamy.
Combine the Vegetables: Let the charred corn cool slightly, then mix it with the red onion, jalapeño, garlic, avocado, cilantro, and oregano in a large bowl.
Mix it All Together: Pour the creamy dressing over the corn and veggies, gently folding until well-coated.
Final Touches: Taste and adjust seasoning with salt, pepper, or lime juice. Garnish with additional cilantro, avocado, and cotija cheese.
Notes
This salad can be enjoyed for up to 3 days in the fridge. Keep dressing separate for best results.