1. Preheat the oven to 400F and lightly spray a small oven-safe baking dish with nonstick spray. I used a 9×5 dish. 
2. Place all of the ingredients into a food processor or high powered blender and mix until smooth and creamy. A few lumps from the grated parmesan cheese is ok! Scrape everything into the prepared dish and top with additional grated parmesan. Place the dish in the oven for 15 minutes until bubbly and heated through. Turn the oven to broil for 1-2 minutes until golden on top!
3. Remove the dip from the oven and cool for a few minutes before servings. Top with cracked pepper, drizzled honey, or candied walnuts.

Dip stays warm and gooey for about an hour out of the oven, after which it will still be delicious at room temperature! Store leftover dip in the fridge, in an airtight container for 3-4 days.