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Roast Beef and French Onion Grilled Cheese

11/9/2018, noon
SERVINGS: 2 / TOTAL TIME: 45 MINS INGREDIENTS 1 tbsp. olive oil 1 small onion 1 tsp. thyme leaves kosher ...

SERVINGS: 2 / TOTAL TIME: 45 MINS

INGREDIENTS

1 tbsp. olive oil

1 small onion

1 tsp. thyme leaves

kosher salt

Pepper

4 slice rye bread

1 tbsp. melted unsalted butter or olive oil

1 tbsp. whole-grain mustard

2 oz. Gruyère cheese

2 slice roast beef

DIRECTIONS

  1. Heat olive oil in a medium skillet over medium heat. Add onion, season with 1/4 teaspoon each salt and pepper, and cook, covered, stirring occasionally, for 12 minutes. Reduce the heat to medium-low, stir in thyme leaves and cook, uncovered, stirring occasionally, until the onions are golden brown, 15 to 20 minutes more (add 1 tablespoon water to the skillet if the onions start sticking).

  2. Brush one side of each slice of bread with butter or oil. Form sandwiches with the bread, whole-grain mustard, Gruyère cheese, roast beef, and the onion mixture. Cook the sandwiches, covered, until the bread is golden brown and crisp and the cheese has melted, 4 to 5 minutes per side.