French cheese bread recipe delivers a warm, rich taste that leans on slow-cooked onions, gentle sweetness, and deep, buttery notes.The melted Gruyère or Fontina brings a soft, nutty depth that blends into the toasted bread, creating a smooth, mellow richness.
Set the oven to 375°F (190°C). Arrange the French rolls cut side up on a baking sheet and toast them for about 5 minutes. Take them out and leave them aside.
Melt the butter in a large skillet over medium heat. Add the onions and sugar, stirring occasionally. Cook gently until the onions turn soft and caramelized, about 15 minutes.
Stir in the garlic, thyme, salt, pepper, and white balsamic vinegar. Cook for another 2-3 minutes until the mixture becomes fragrant, then removes from heat.
Spread a layer of shredded cheese over the toasted rolls, and then spoon the onion mixture evenly on top.
Put the baking sheet back in the oven and bake for 8-10 minutes, until the cheese bubbles and turns lightly golden. Take the rolls out, let them cool a little, then cut and serve warm.
Notes
Note: For best results, use fresh French rolls with a sturdy crust. Gruyère gives a richer, nuttier flavor, while Fontina melts more smoothly. This recipe can also be served as a light meal with a side salad.