Heat a large skillet over low heat and add the butter. Add the sliced onions with the salt and pepper and stir. Cook until slightly softened, about 5 minutes. Add in the pilsner and cook, stirring often, until the onions caramelize, about 25 to 30 minutes.
Preheat the oven to 375 degrees F. Spray a 9-inch baking dish with nonstick spray.
In a large bowl, stir together the cream cheese, almost all the cheese (I save a handful for topping the dip!), the hot sauce, BBQ sauce, honey mustard, ranch and blue cheese. You can use an electric hand mixer to combine things more if needed! Once combined, stir in the caramelized onions and the shredded chicken. Spread the mixture in a baking dish. Top with the remaining cheese. Add on another drizzle of BBQ sauce, buffalo and honey mustard.
Bake the dip for 20 to 25 minutes, until golden and bubbly and hot. Serve immediately with carrot sticks, celery sticks, crackers and chips.