Ingredients

Method

1. 1

   Thinly slice the yellow onions. In a large pan over medium to medium-low heat, sauté the onions with butter, salt, and sugar. Cook, stirring occasionally, for an extended period (the video mentions a few hours) until they are deeply caramelized and sweet. Let them cool completely before using.

2. 2

   In a large mixing bowl, combine the warm water and 1 tablespoon of sugar. Sprinkle the active dry yeast over the top and stir gently. Let the mixture sit for about 5-10 minutes until the yeast becomes foamy, a process known as blooming.

3. 3

   To the bloomed yeast mixture, add the melted butter and the egg. Whisk everything together until well combined.

4. 4

   Add the bread flour, onion powder, dried thyme, and salt to the wet ingredients. Mix with a spatula until a shaggy dough forms. Add 1/3 cup of the cooled, chopped caramelized onions. Turn the dough out onto a lightly floured surface and knead for 8-10 minutes until it becomes smooth and elastic.

5. 5

   Place the kneaded dough into a lightly oiled bowl. Cover the bowl with a towel and let it rise in a warm place for about 1 hour, or until it has doubled in size.

6. 6

   While the dough is rising, prepare the filling. In a small bowl, mix the softened butter with 1 teaspoon of thyme, 1/2 teaspoon of onion powder, and black pepper until well combined. Set aside. Shred the gruyère, mozzarella, and provolone cheeses.

7. 7

   Once the dough has risen, punch it down to release the air. On a floured surface, roll the dough out into a large rectangle. Spread the seasoned butter mixture evenly over the surface of the dough. Top with the remaining caramelized onions, followed by an even layer of the shredded gruyère, mozzarella, and provolone cheeses. Tightly roll the dough into a log.

8. 8

   Line the bottom of a baking dish with a layer of shredded cheese (optional, for a cheesy crust). Cut the dough log into 8-9 equal-sized rolls.

9. 9

   Arrange the cut rolls in the prepared baking dish, leaving a little space between them. Cover the dish with a towel and let the rolls rise for another 30-40 minutes.

10. 10

    Preheat your oven to 350°F (175°C). Bake the rolls for 28-35 minutes, or until they are golden brown and the cheese is bubbly.

11. 11

    After removing the rolls from the oven, immediately brush them with melted butter. Garnish with fresh parsley or chives and a sprinkle of flaky salt. Serve warm.