Yummy Garlic Onion Bread

This bread is to die for! You won't be dissapointed!

1 loaf french bread, cut in half
1 small onion,finely diced
3 cloves minced garlic
2 TB butter
1 cup shredded mozzarella cheese
1/2 cup grated Parmesan cheese
1 cup mayonnaise

Directions
1.Preheat the broiler.
2.Slice the French Bread into 2 halves.Cut to separate the halves. Toast bread for 2-3 minutes.
3.In a medium skillet over medium heat, melt the butter. Combine the onions and garlic in the skillet. Cook and stir until tender. Set aside to cool.
4.In a mixing bowl, combine the mozzarella cheese, Parmesan cheese and mayonnaise.
5.Put the bread on a cookie sheet. Spread the onion and garlic mixture on the bread. Spread the cheese and mayonnaise mixture over the onion and garlic mixture on the bread. Broil about 5 minutes, until the cheese is bubbly and slightly browned. Everyone's broiler is different so make sure it doesn't burn.