Corned Beef Grilled Cheese Sandwich with Guinness Caramelized Onions

Ingredients

1 tablespoon oil
1 medium onion, sliced
1 cup Guinness
1 teaspoon Worcestershire sauce
2 teaspoons grainy mustard
1 tablespoon butter, room temperature
2 slices rye, lightly toasted
1/2 cup cheddar, shredded, room temperature
2 ounces cooked corned beef, sliced or shredded, warm

View the full recipe: Closet Cooking

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