It's appetizers like this that make Southerners legendary hosts ✨ Ingredients: -1 medium (8 oz.) sweet or yellow onion -1/2 tsp. dried parsley -1/2 tsp. dry mustard -1/4 tsp. kosher salt -1/4 tsp. black pepper -1/4 tsp. garlic powder -1/4 tsp. smoked paprika -4 oz. pre-shredded Parmesan cheese (about 1 cup) -2 oz. aged sharp white Cheddar cheese, shredded (about 1/2 cup) -2 oz. smoked Gouda cheese, shredded (about 1/2 cup) -Ranch dressing, for dipping Directions: -Preheat oven to 400°F. Gather all ingredients. -Line a large rimmed baking sheet with parchment paper. Using a mandolin, thinly slice onion into rings about 1/16-inch thick. -Stir together dried parsley, dry mustard, salt, pepper, garlic powder, and smoked paprika in a small bowl. -Sprinkle 2/3 cup of the Parmesan evenly over prepared baking sheet in an even layer. Sprinkle Cheddar and Gouda evenly over Parmesan. -Place onion rings in a single layer on cheese mixture. -Sprinkle evenly with spice mixture. -Sprinkle remaining 1...