French Onion Soup

Deeply caramelized onions simmered in a rich beef broth with a splash of sherry, topped with toasted bread and melted Gruyere. Patience with the onions is the whole secret here.

Medium Premium ★ ★ ★ ★ ☆ (208 reviews)

Prep Time 20 min

Cook Time 90 min

Total Time 110 min

Servings 4 servings

Difficulty Medium

Ingredients

4 tablespoons unsalted butter
1 tablespoon olive oil

Instructions

Melt the butter with the olive oil in a large Dutch oven over medium heat, then add the sliced onions, kosher salt, and sugar; the salt draws out moisture and the sugar helps caramelization.