Place the potatoes in a large saucepan and cover with water. Bring to a boil. Reduce heat; cover and cook for 10-15 minutes or until tender. Drain; cool to room temperature.
In a large bowl, combine potatoes, celery, eggs, onion and jalapenos. In a small bowl, combine the mayonnaise, mustard, hot pepper sauce, cumin and pepper. Pour over potato mixture and toss gently to coat. Cover and refrigerate overnight.