Grilled Cheese with Bacon-Onion Jam

Grilled Cheese with Bacon-Onion Jam

Just when you think grilled cheese is the most perfect food there ever was, somebody goes and puts BACON-ONION JAM in it.

I definitely could eat this bacon-onion jam with a spoon. Caramelized onion with crispy bacon cooked down with sugar and balsamic vinegar for the sweet and savory flavors of my dreams! My current favorite condiment.

Bacon-Onion Jam

I made it specifically with the end goal of putting it on grilled cheese, but if you have any leftover (which you probably will!) I think it would be good on.. um… everything? Grilled meat! Flatbread! Toast! Roasted veggies! Salads! From a spoon is also good.

Also also between slices of buttery grilled bread loaded with sharp and creamy gruyère and white cheddar.

Grilled Cheese with Bacon-Onion Jam

I am doing my best to control myself here. THESE ARE SO GOOD.

Regular grilled cheese is a lunchtime staple around here, but sometimes it’s fun to jazz it up for dinner and make our most favorite sandwich a little fancier.

Grilled Cheese with Bacon-Onion Jam

  • Servings: Makes 8 sandwiches
  • Difficulty: Easy
  • Print



  • 1 1/2 cups chopped bacon (from about 6 ounces)
  • 3 cups diced sweet onion (from about 2 medium onions)
  • 1/2 cup packed brown sugar
  • 1/3 cup balsamic vinegar
  • 1/4 teaspoon salt


  • 1 (16 ounce) loaf of Italian bread, butts removed and cut into 16 slices
  • 4 tablespoons softened butter
  • 5 ounces shredded white cheddar
  • 4 ounces shredded gruyère



Heat a medium saucepan over medium-high. Add bacon and cook until fat is rendered and bacon begins to crisp – about 7 minutes. Add the onions and continue cooking 10 minutes, stirring occasionally, until onions are golden brown.

Reduce heat to low. Sprinkle brown sugar over the onions and – without stirring – pat sugar into an even layer. Cook 10 minutes, undisturbed. Brown sugar should be melted and gently bubbling.

Stir in vinegar and simmer over medium heat until jam is thick – about 10 minutes. Season with salt.

If not using immediately, bacon-onion jam can be stored in the refrigerator for 5 days.


Spread one side of each slice of bread with butter. Combine cheeses in a medium bowl.

To assemble sandwiches, layer cheese, bacon-onion jam, then more cheese on an unbuttered side of sliced bread. Top with another slice, buttered side out. Grill in a large skillet or griddle for 3-4 minutes per side over medium-low heat, until bread is browned and crisp and cheese is completely melted.

Grilled Cheese with Bacon-Onion Jam

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