Preheat the oven to 350 degrees Fahrenheit (175 degrees Celsius).
Using a serrated knife, cut a rectangular section out of the top of each baguette, leaving a 1/2-inch border on all sides.
Carefully remove the bread from the center to create a deep well, being careful not to cut through the bottom.
In a medium mixing bowl, whisk together the eggs and heavy cream until well combined.
Stir in the shredded cheese, cooked bacon, chives, salt, and pepper.
Place the hollowed baguettes onto a baking sheet lined with parchment paper.
Evenly distribute the egg mixture into the bread boats.
Bake for 25 to 28 minutes or until the egg filling is puffed and set in the center.
Allow the boats to cool for 5 minutes before slicing into sections for service.