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This sandwich is what happens when a grilled cheese grows up. You keep the buttery crunch and the molten center, but add concentrated oven-dried tomatoes and crispy bacon so every bite has salt, acid, and smoke.
The key is drying the tomatoes yourself. It takes about two hours in a low oven, but it removes the watery pulp that turns grilled cheese soggy and leaves behind intense tomato flavor. You can do it ahead while the bacon cooks, then build the sandwich in minutes.
I use a mix of Gruyere and sharp cheddar for melt and punch, with thick sourdough to hold the layers. The result is rich and savory, but still a grilled cheese at heart.
What goes into the stack
Quality matters here because the ingredient list is short. Buy a loaf of real sourdough with a tight crumb, thick-cut bacon, and a wedge of Gruyere you grate yourself. Pre-shredded cheese is coated in anti-caking starch that dulls the melt.
- Roma tomatoes. Meaty and low in seeds, they dry into concentrated sweet-tart strips without turning to mush.
- Thick-cut bacon. Cooks up crisp and adds enough salt and smoke to balance the rich cheese.
- Gruyere. A nutty melting cheese that gives you the iconic cheese pull and depth.
- Sharp cheddar. Adds tang and keeps the flavor from going one-note.
- Sourdough bread. Sturdy enough to hold the fillings and crisps beautifully in butter.
- Unsalted butter. Lets you control the salt since the bacon and cheese already bring plenty.
How to build it
- Oven-dry the tomatoes. Preheat the oven to 250°F. Slice Roma tomatoes a quarter-inch thick, toss with olive oil and salt, and lay them on a parchment-lined baking sheet. Bake for 2 to 2.5 hours until they are shriveled and mostly dry but still pliable.
- Cook the bacon. Fry the bacon in a skillet over medium heat until it is deeply crisp, about 4 to 5 minutes per side. Drain on paper towels and break each slice in half.
- Build the sandwiches. Butter one side of each bread slice. Flip them over and layer Gruyere, a few tomato pieces, bacon, and cheddar on the unbuttered sides. Close the sandwiches with the buttered sides facing out.
- Grill low and slow. Heat a heavy skillet over medium-low. Cook each sandwich for 3 to 4 minutes per side, pressing gently with a spatula, until the bread is deep golden and the cheese has fully melted.
- Rest and cut. Let the sandwich sit for one minute so the cheese sets slightly, then slice in half and serve.
Why dry the tomatoes
Fresh tomato slices are mostly water, and that water steams the bread from the inside. Oven-drying removes most of the moisture while concentrating the sugars, so you get bright tomato flavor without the soggy center. The tomatoes end up closer to sun-dried tomatoes, but fresher and less leathery. If you want another take on tomato and cheese, our Mediterranean Grilled Cheese Sandwich uses roasted red peppers and feta for a tangier route.
Cheese that melts and means it
Gruyere and sharp cheddar are my go-to pair. Gruyere brings stretch and a nutty backbone, while cheddar adds acidity. Grate them fresh from the block for the smoothest melt. Bagged shreds contain cellulose that can make the cheese grainy and slow to liquefy.
Low heat builds the crust
Medium-low heat is the secret to evenly melted cheese without burnt bread. The butter toasts the sourdough slowly, giving you a shattering crust and time for the cheese to turn molten all the way through. If the bread is browning faster than the cheese is melting, lower the heat and cover the pan for a minute. For a spicy twist, try our Dill Pickle Bacon Grilled Cheese or Spicy Bacon Grilled Cheese.
Swaps and additions
No sourdough? A sturdy country white or potato bread works. You can swap the Gruyere for fontina or young gouda, and the cheddar for smoked cheddar if you want more depth. A thin swipe of Dijon mustard on the inside adds welcome heat without stealing the show. For a fun hand-held version, check out our Bacon-Wrapped Grilled Cheese Fingers.
Storing and reheating
These sandwiches are best eaten fresh, but you can store leftovers wrapped in foil in the refrigerator for up to two days. Reheat in a skillet over medium-low with a tiny pat of butter to re-crisp the bread. The microwave will make the bread chewy and the bacon rubbery, so avoid it.
FAQs
- Can I use store-bought sun-dried tomatoes instead?
Yes, but look for oil-packed ones and blot off excess oil with a paper towel. Dry-packed sun-dried tomatoes can be too leathery unless you rehydrate them slightly.
- What is the best cheese for a gourmet grilled cheese?
A mix of a great melter and a flavorful aged cheese works best. Gruyere, fontina, or young gouda give you stretch, while sharp cheddar or aged provolone add bite.
- How do I keep my grilled cheese from getting soggy?
Remove moisture from the fillings before they hit the bread. Oven-dried tomatoes have far less water than fresh slices, and crispy bacon adds crunch instead of grease. Butter the bread, not the pan, for an even crisp crust.
- Can I make the oven-dried tomatoes ahead?
Absolutely. They keep in an airtight container in the refrigerator for up to five days. You can also freeze them for up to one month and thaw before using.
- What bread works best?
Sourdough is ideal because it is sturdy and tangy. Country white, ciabatta, or a dense potato bread also hold up well. Avoid airy sandwich bread that collapses under the fillings.
- Can I cook this on a panini press?
Yes. A panini press works great and cooks both sides at once. Use medium heat and check after 3 minutes to make sure the cheese is fully melted before the bread over-browns.
- How do I store and reheat leftovers?
Wrap cooled sandwiches in foil and refrigerate for up to two days. Reheat in a skillet over medium-low with a small pat of butter to restore the crisp crust.
- Is there a vegetarian version?
Skip the bacon and add roasted red peppers or caramelized onions for savory depth. You could also use smoked cheese to mimic the bacon flavor.
