Cut off the top of the bread. Use a bread knife to cut around the inside of the bread and scoop the center out.
3. Step
Cut the center and top of the bread into bite-sized cubes.
4. Step
Mix two teaspoons of crushed garlic into the melted butter. Brush the garlic butter on the bottom and the inside walls of the bread boat.
5. Step
Dip all the bread cubes in the remaining garlic butter, set aside.
6. Step
Combine the cream cheese, cheddar, mozzarella, milk, remaining teaspoon of crushed garlic, salt, and pepper in a medium bowl.
7. Step
Pour the cheese mixture into the bread boat.
8. Step
Brush the top of the cheese mixture with egg yolk.
9. Step
Place the bread boat and the bread cubes on a baking sheet.
10. Step
Bake for 15 minutes, remove the croutons, and continue baking the bread boat for another 15 minutes, or until the cheese is melted and a golden brown crust is formed.
