Caramelized Onion, Bacon
Grilled Cheese Sandwich
The ultimate comfort food upgrade. This golden, crispy grilled cheese features gooey mozzarella, smoky bacon, and deeply caramelized onions tossed in a sweet-savory glaze.
Elevating the classic grilled cheese requires a perfect balance of rich, contrasting flavors. By combining smoky, rendered bacon with deeply caramelized onions glazed in teriyaki and black vinegar, this sandwich hits every savory, sweet, and umami note. The mozzarella provides a mild, melty canvas to hold it all together inside a perfectly toasted, buttery crust.
Ingredients
- 3 slices bacon
- 1 tbsp butter
- 1 tsp cooking oil
- 1/2 white onion
- 1/2 red onion
- 1 tsp black vinegar
- 1 tbsp teriyaki sauce
- 1 tsp sugar
- 2 slices white bread
- 1/2 cup shredded mozzarella cheese
Instructions
- 1Prepare and cook the bacon
Chop the bacon into small pieces and sauté them in a pan over low heat until they become crispy and fragrant. Once done, remove the bacon bits from the pan and set them aside for later.
Tip: Cooking over low heat helps render the fat slowly and prevents the bacon from burning. - 2Sauté the onions
In the same pan used for the bacon, melt a pat of butter with a little cooking oil. Add thinly sliced white and red onions to the pan, cooking them over medium heat until they begin to soften and release their natural moisture.
Tip: Using a mix of white and red onions adds a balanced sweetness and depth of flavor. - 3Add sauce to onions
Stir some black vinegar and teriyaki sauce into the caramelized onionscite: 1. Turn down the heat, add a little sugar, and cook until the mixture is glossy and slightly stickycite: 1.
Tip: Patiently cooking the onions down until they become soft and tanned is key to developing a rich, sweet flavorcite: 1. - 4Gloss and sweeten the onions
Turn down the heat, sprinkle a little sugar over the caramelized onions, and continue cooking until the mixture becomes glossy, rich, and slightly sticky.
Tip: Keep the heat low after adding sugar to avoid burning the sticky glaze. - 5Combine bacon and onions
Fold the previously cooked, crispy bacon bits directly into the pan with the glossy, caramelized onion mixture, stirring well so the flavors fully meld together.
Tip: Mixing the bacon in at this stage ensures every bite of the filling has a smoky crunch. - 6Butter the bread
Take a slice of bread and use a knife to spread butter evenly over one sidecite: 1.
Tip: Ensuring an even coat of butter will help the bread fry perfectly golden brown and crispy in the pancite: 1. - 7Place bread in pan
Take a slice of bread that has been buttered on one side and place it butter-side down directly into the heated pan. This starts the toasting process and creates a golden, crispy crust.
Tip: Keep the heat low so the butter melts and toasts the bread evenly without burning before the sandwich is assembled. - 8Add the first cheese layer
With the bread placed butter-side down in the pan, sprinkle a layer of shredded mozzarella cheese evenly across the topcite: 1.
Tip: Placing the cheese directly on the bread helps it melt completely and bind the filling to the crustcite: 1. - 9Add the onion and bacon filling
Spoon a generous scoop of the caramelized onion and crispy bacon mixture evenly over the melted cheese layercite: 1.
Tip: Spread the filling all the way to the edges so that every bite is packed with the glossy, sticky mixturecite: 1. - 10Top with more cheese
Sprinkle another layer of shredded mozzarella cheese on top of the onion and bacon filling before covering it with the top slice of breadcite: 1.
Tip: This extra layer of cheese acts as a delicious glue to hold the top slice of bread securely to the sandwichcite: 1. - 11Add top bread slice
Place a second slice of buttered bread on top of the cheese and filling mixture to complete the sandwich assembly. Ensure it sits evenly over the ingredients.
Tip: Make sure the buttered side of this top slice faces upward so it can toast properly when flipped. - 12Flip the sandwich
Carefully flip the entire sandwich over in the pan to toast the other side. Cook until both sides are perfectly golden brown and the cheese is fully melted inside.
Tip: Use a wide spatula to flip the sandwich gently so the fillings stay securely inside.
