Serve with chips or pita chips or pretzels.

2 cups chopped Vidalia onion
2 cups mayonnaise
2 cups shredded Swiss cheese
2 cups grated Parmesan cheese

2 cup s chopped Vidalia onion 2 cup s mayonnaise 2 cup s shredded Swiss cheese 2 cup s grated Parmesan cheese

1. Preheat oven to 325 degrees F.

2. Stir together all ingredients and spread in a 2-quart baking dish. Bake until the top is golden brown and bubbling, about 1 hour. Serve immediately with pita chips, breadsticks or pretzels.