01 -
Heat the oven to 325 degrees F (165 degrees C). Slice the tops off the rolls and pull out the soft centers, leaving about 1/2 inch of bread around the sides and bottom. Tear the removed bread into dipping pieces.
02 -
Set the hollow rolls, lids, and torn bread pieces on a baking tray. Brush lightly with olive oil or melted butter and bake for 6-8 minutes, until the bread feels lightly crisp but not hard.
03 -
Cook the bacon in a skillet over medium heat for 5-7 minutes, until the fat renders and the edges crisp. Add the onion and cook for 3-4 minutes more, until softened. Drain excess fat if needed.
04 -
Reduce the heat to low. Stir in the cream cheese and sour cream until smooth. Add the French onion soup mix, 1 cup cheddar, mozzarella, chives, and black pepper. Stir until melted and creamy.
05 -
Increase the oven to 400 degrees F (200 degrees C). Spoon the hot filling into the toasted mini loaves and sprinkle with the reserved 1/4 cup cheddar. Bake for 10-12 minutes, until bubbling on top.
06 -
Let the mini loaves rest for 3-5 minutes. Sprinkle with extra chives and serve with the toasted bread pieces for dipping.