Creating your own Mexican Street Corn Salad is incredibly easy and fun. Follow these simple steps:

1. Cook the Corn: If using fresh corn, grill the corn on medium heat for 10 minutes, turning occasionally, until charred. If using frozen corn, microwave it according to package instructions.
2. Prepare Vegetables: Dice the red bell pepper, finely chop the red onion, and mince the jalapeño (if using).
3. Combine Ingredients: In a large bowl, mix the corn kernels, bell pepper, red onion, and jalapeño.
4. Make the Dressing: In a separate small bowl, whisk together the mayonnaise, sour cream, lime juice, chili powder, salt, and pepper until smooth.
5. Mix Together: Pour the dressing over the corn mixture and stir until everything is well combined.
6. Add Cheese: Gently fold in the crumbled cotija cheese, reserving a little for garnish.
7. Taste and Adjust: Taste the salad and adjust seasoning, adding more lime juice, salt, or chili powder as desired.
8. Chill: Cover the salad and refrigerate for at least 30 minutes to allow the flavors to meld.
9. Serve: Before serving, give the salad a quick stir and garnish with fresh cilantro and extra cotija cheese.

These straightforward steps will guide you in creating a delicious and colorful Mexican Street Corn Salad that impresses with its vibrancy and flavor.