In a medium-sized mixing bowl, combine the mayonnaise, sour cream, and softened cream cheese.
Using a whisk or a hand mixer or stand mixer, whisk these ingredients together until you achieve a smooth and creamy texture.
Add in the relish, chopped Cornichon pickles, and chopped pickled jalapenos.
Stir these into the creamy mixture until well combined.
Next, add the zest of one lemon, along with the fresh lemon juice.
Incorporate the finely chopped parsley and dill into the mixture, stirring well to evenly distribute these aromatic herbs throughout the dip.
Add the garlic powder, onion powder, and a pinch of Kosher salt and freshly-ground black pepper.
Taste, and adjust seasonings as desired.
Mix well, until all the spices are integrated into the dip.
For the best flavor, cover the dip and let it rest in the refrigerator for at least an hour.
*This allows all the flavors to meld together.
Before serving, give the dip a good stir to redistribute any herbs or spices that may have settled.
Serve chilled, with an array of colorful raw vegetables such as carrot sticks, cucumber slices, celery sticks, bell pepper strips, and cherry tomatoes, or with your favorite variety of chips.