A creamy garlic bread that will have you wanting more after one bite. This bread has a crispy top and soft squishy bottom just like bottoms should be. You need this bread in your life.
In a bowl, mix together butter, garlic, mayonnaise, sour cream, ½ cup of the Parmesan, pepper and salt. Spread evenly on bread. Sprinkle top with remaining Parmesan cheese.
Place bread, cut side up, on a baking sheet on the middle rack of the oven and broil until golden and bubbly. Broiling on the middle rack browns the top and gives the bread a chance to warm up, the topping to bubble, and the edges to crisp without burning.
Slice the bread into sections and enjoy the crispy edges, cheesy top, and warm soft bottom.