Making Creamy Crab Imperial is simple and enjoyable! Follow these steps for delicious results:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Prepare a baking dish or individual ramekins.
2. Mix the Base: In a large mixing bowl, combine mayonnaise, sour cream, Parmesan cheese, Dijon mustard, Worcestershire sauce, lemon juice, Old Bay seasoning, garlic powder, onion powder, cayenne pepper if using, salt, and pepper. Mix until well incorporated.
3. Add the Crab: Gently fold in the lump crab meat to the mixture, careful not to break up the meat too much.
4. Transfer to the Baking Dish: Spoon the crab mixture into the prepared baking dish or divide it among ramekins.
5. Prepare the Topping: In a small bowl, mix breadcrumbs with a sprinkle of salt and pepper. Top the crab mixture evenly with breadcrumbs for a crunchy topping.
6. Bake: Place in the oven and bake for 25-30 minutes, or until the top is golden brown and bubbly.
7. Garnish: Once out of the oven, let it cool for a few minutes, then garnish with chopped green onions for an added touch of flavor.
8. Serve Warm: Carefully transfer to serving plates or serve directly from the baking dish. Enjoy while warm!

These steps will guide you effortlessly in creating this creamy and delicious dish that everyone will love.