Step 1: Prepare the Ingredients: Cook the bacon in a skillet over medium heat until crispy, about 6-8 minutes. Transfer to a paper towel-lined plate to drain and cool, then chop into small pieces. While the bacon cooks, shred the rotisserie chicken into bite-sized pieces, discarding the skin and bones. Finely dice the fresh and pickled jalapenos, removing seeds and membranes from the fresh jalapeno if you prefer less heat. Chop the celery, bell peppers, and green onions into small, uniform pieces. Shred the sharp cheddar cheese. Roughly chop the fresh cilantro.
Step 2: Make the Dressing: In a large mixing bowl, combine the mayonnaise, lime juice, pickled jalapeno brine, Dijon mustard, onion powder, garlic powder, sugar, salt, and black pepper. Whisk everything together until smooth and well combined. Taste and adjust seasonings as needed. The dressing should be tangy, slightly sweet, and well-seasoned.
Step 3: Combine Everything: Add the shredded chicken to the bowl along with the fresh jalapenos, pickled jalapenos, bacon, sharp cheddar cheese, celery, bell peppers, green onions, and fresh cilantro. Gently fold everything together until all ingredients are evenly distributed and coated with dressing. Be careful not to overmix, or you'll break up the chicken too much.
Step 4: Chill and Serve: Serve immediately or for the best flavor, cover the bowl and refrigerate the chicken salad for at least 30 minutes before serving. This allows the flavors to marry and the vegetables to soften slightly. Give it a quick stir before serving. Serve on bread for sandwiches, in wraps, on crackers, over salad greens, or dip with fresh veggies.