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Caramelised Onion Bacon Toasted Cheese

By Chef Melanie November 11, 2025
  • grilled cheese
  • caramelised onions
  • bacon
  • sandwich
  • comfort food
  • mozzarella
Difficulty Beginner
Servings 4
Estimated Cost $14.00
Best Season Suitable throughout the year
Prep Time 15 mins
Cook Time 15 mins
Total Time 30 mins
Caramelised Onion Bacon Toasted Cheese

An indulgent grilled cheese sandwich elevated with sweet caramelised onions and crispy bacon! This gourmet twist on a classic comfort food combines melted mozzarella, savory bacon, and perfectly caramelised onions for a sandwich that's absolutely irresistible.

Instructions

  1. 1

    **To make the caramelised onions:** Heat a large frying pan over medium heat, then sauté the onions in the olive oil with the salt until soft and golden.

  2. 2

    Add the sugar and vinegar and allow to caramelise. Set aside.

  3. 3

    **To make the sandwich:** Butter the bread on both sides, then top with the onions, mozzarella cheese and bacon.

  4. 4

    Grill in a hot pan/sandwich press until golden brown and heated through.

  5. 5

    Serve immediately.

  6. 6

    **Pro Tips:** Make sure the bacon is crispy before assembling the sandwich - it adds great texture! Don't skip buttering both sides of the bread - this ensures a perfectly golden, crispy exterior.