Put broiler on high. Line a baking sheet with aluminum foil.
While the oven is heating, slice the bread in half. Melt the butter in the microwave (about 1 minute) and mix in the minced garlic. If you're using the jarred garlic, you can add in a little of the juice for some extra flavor. Spread the butter mixture over both slices of bread.
Place bread on the baking sheet and put under the broiler for 2 minutes or until light brown. Keep an eye on it because it will brown quickly.
Once done, remove from the oven and preheat oven to 350 degrees F.
Mix the cheeses, scallions and mayonnaise in a small bowl. Spread over top of the bread slices. When the oven is done preheating, place the bread back in for 7-10 minutes or until cheese mixture is bubbly and begins to brown. Serve immediately.
by The Savvy Kitchen