– Combine Ingredients: In a large mixing bowl, combine the black beans, thawed corn kernels, diced red bell pepper, finely chopped red onion, fresh cilantro, and minced jalapeño pepper (if using). – Prepare the Dressing: In a separate small bowl, whisk together the lime juice, extra-virgin olive oil, ground cumin, salt, and pepper until well combined. – Toss and Dress: Pour the dressing over the salad ingredients in the large bowl. Gently toss everything together until the dressing evenly coats the salad. – Chill and Marinate: Cover the salad and refrigerate it for at least 30 minutes to allow the flavors to meld and the salad to marinate. – Garnish and Serve: When ready to serve, garnish the Black Bean and Corn Salad with avocado slices, if desired. It adds a creamy contrast to the vibrant flavors.