Caramelized Onion Galette

I love French Onion Soup. Heck, I love caramelized onions in general. I was trying to perfect an Air Fried Bloomin’ Onion a little while ago and had used up several yellow onions, but still had quite a few left over, so, I caramelized them and put them in this galette! I served it as a side to Caesar salad one night and it was perfect.

INGREDIENTS

For the dough:

1 ½ cups/190 grams all-purpose flour
2 Tbsp granulated sugar
Kosher salt and black pepper
½ cup/115 grams unsalted butter (1 stick), cut into 1/2-inch cubes
1 ⅓ cups/4 ounces grated Gruyère
¼ cup ice water

For the Onions and Assembly:

¼ cupunsalted butter (1/2 stick)
4 large sweet onions, peeled and sliced into 1/2-inch rings
4 fresh thyme sprigs, plus more fresh thyme leaves for serving
Kosher salt and black pepper
1 cup beef broth (or vegetable broth)
¼ cup dry sherry

DIRECTIONS

• Prepare the onions: In a large skillet, melt the butter over medium-high heat. Add onions and thyme sprigs, season with 1 teaspoon salt and 1/2 teaspoon pepper and cook, stirring occasionally, until the onions are translucent and lightly golden on the edges, 20 to 25 minutes. Reduce the heat to medium, add broth and sherry and cook until the onions are browned and the liquid has mostly evaporated but the mixture is still saucy, 16 to 18 minutes. Transfer to a bowl and set aside to cool for at least 30 minutes.

• Heat the oven to 375 degrees. Roll the dough into a 13-inch round on a sheet of parchment. Spread the cooled caramelized onions on the dough, leaving a 1- to 2-inch border. Fold the edges in, over the onions, transfer to a baking sheet and bake until the dough is golden brown and some of the onions have browned on the edges, 40 to 50 minutes, rotating the galette halfway into the baking process.

• Remove galette from the oven and sprinkle remaining 1/3 cup grated Gruyère on the crust. Bake another 5 minutes to melt the cheese. Remove and let rest for 10 minutes before slicing. Top with remaining thyme leaves, for garnish.