Ingredients
2 cups mayo
2 cups Swiss cheese
2 cups vadilia onion
Preparation
Chop onion and shred cheese mix and BAKE in 350 oven about 20 minutes (until bubbly)
NEVER - cook in microwave, it destroys the cheese, making it greasy.
BTW - you can easily halve the recipe - it’s just a 1 to 1 to 1 ratio