In a mixing bowl, whisk together mayonnaise, sour cream, and buttermilk until smooth.
Add garlic powder, onion powder, dried dill, dried parsley, smoked paprika, cayenne (if using), salt, and black pepper. Mix well.
Stir in fresh lemon juice and optional chives or green onions.
Cover and refrigerate for at least 30 minutes to let the flavors meld together.
Preheat your oven to 375°F (190°C).
Mix it up! In a large bowl, combine shredded chicken, softened cream cheese, homemade ranch dressing, buffalo sauce, cheddar cheese, and mozzarella cheese. Stir until everything is well incorporated.
Transfer the mixture to an oven-safe dish and spread it evenly.
Top it off with extra shredded cheddar for that melty, golden finish.
Bake for 20-25 minutes or until the dip is bubbling and the cheese is melted to perfection.
Cool slightly, garnish with chopped green onions, and get ready to dig in.