In a large mixing bowl, combine the coleslaw mix, fresh corn kernels, chopped green onions, and pickled jalapeños. Gently fold the ingredients together with a spatula.

In a separate small bowl, whisk together mayonnaise, apple cider vinegar, kosher salt, and freshly ground black pepper until smooth and creamy.

Pour the creamy dressing over the vegetable mixture and toss gently until well combined.

Cover the bowl and refrigerate for at least 30 minutes to meld flavors.

Before serving, give the coleslaw a quick toss, transfer it to a serving bowl, and garnish with extra chopped cilantro or parsley.