French Onion Grilled Cheese Recipe 

 Originally Written: April 26, 2013

By  Hanna Trafford

French Onion Grillled Cheese 001Perfect for a quick dinner – and a definite treat!


  • 1 tablespoon of olive oil
  • 3 medium onions, thinly sliced (about 3-1/2 cups)
  • 1/2 of low-sodium beef broth
  • 1 thyme spring
  • 1/4 cup of dry sherry (optional)
  • 4 teaspoons of Dijon mustard
  • 8 slices of rye bread
  • 4 slices of gruyere or swiss cheese


  1. Heat a large non-stick pan over high. Add 1 teaspoon of oil, then onions, broth and thyme.
  2. Cook, stirring often, until liquid is reduced – about 15 minutes
  3. Add sherry and continue cooking until absorbed – about 5 more minutes
  4. Remove thyme
  5. Spread Dijon mustard on 4 slices of bread
  6. Top each slice with about 1/3 cup of onion mixture and 1 cheese slices
  7. Top with remaining bread
  8. Wipe pan clean and heat over medium heat
  9. Cook 2 sandwiches at a time – about 2 minutes per side
  10. Repeat with remaining oil and sandwiches
  11. Keep grilled sandwiches warm on a foil lined baking sheet in a 200F oven


Hope you will enjoy this recipe! Please send in your comments, suggestions and experiences, your input is always welcomed and very much appreciated!


Hanna Trafford

Hanna is the mother of two grown sons Dan and Dusan Nedelko, and is also the Grandmother to Jax, Cohen and Mila. She is the lead editor of Mama Knows and is hoping to create an exchange of communications with other grandmothers, mothers and daughters - giving everyone the opportunity to learn and share about everything that is "Mama"

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