Created by Mom2Ava on January 10, 2015
Step 1: In a large bowl, combine mayonnaise and sour cream, soft butter and cayenne until smooth. Mix in minced garlic, then both cheeses and green onion.
Step 2: Preheat broiler.
Step 3: Slice loaf of bread in half horizontally, lay crust side down. Spread cheese mixture over both sliced sides of the bread. Sprinkle 1/3 cup Parmesan cheese over each bread top.
Step 4: Place under the broiler until nicely browned, about 3 to 5 minutes.
Step 5: Remove from broiler and let sit for 5 minutes until cool enough to handle. Slice the bread with a bread knife. Serve.