Gruyère Toasts with Caramelized Onions and Sherry

 Cocktail Party Recipes

Active Time:
25 mins
Total Time:
1 hrs 20 mins
4 dozen toasts


  • 1/4 cup extra-virgin olive oil

  • 4 large onions, thinly sliced

  • 1/4 cup fino sherry

  • 1 1/2 teaspoons caraway seeds, lightly toasted

  • Kosher salt and freshly ground pepper

  • 12 slices of rye bread from a square loaf of rye or European pumpernickel bread

  • 1/2 cup whole-grain mustard

  • 10 ounces Gruyère cheese, coarsely shredded


  1. Heat 2 tablespoons of the olive oil in each of 2 large skillets. Add half of the onions to each skillet and cook over moderately low heat for 1 hour, stirring occasionally, or until nicely browned. Scrape all of the onions into 1 skillet. Stir in the sherry and caraway seeds and cook until the sherry is completely absorbed, about 1 minute. Season with salt and pepper.

  2. Preheat the oven to 400°. Lightly spread 1 side of each slice of bread with the mustard and arrange on a large baking sheet. Top with the onions and cheese. Season with pepper.

  3. Bake the open-faced sandwiches for 6 minutes, or until the cheese is melted and the edges of the bread are toasted. Transfer the toasts to a cutting board and cut into triangles.

Make Ahead

The recipe can be prepared through Step 2 up to 4 hours ahead.

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