Don’t rush this. Good food doesn’t have a timer. And yes, I’m saying that about a sandwich. Because the Classic BLT Sandwich is one of those recipes that seems too simple to require instruction right up until the moment you make a bad one — pale, barely cooked bacon, mealy supermarket tomato, flat bread right out of the bag. Then you understand why technique matters even here.
I’ve been making BLTs for my family for decades. I spent 30 years in professional kitchens, and I’ll tell you something that might surprise you: the criteria for a great BLT and the criteria for great cooking are identical. Start with the best possible ingredients. Apply proper technique. Don’t overcomplicate what doesn’t need complicating.
The best BLT sandwich starts with thick-cut bacon cooked until genuinely crispy, a ripe summer tomato sliced thick, iceberg lettuce for crunch (not arugula, not spring mix — iceberg, for this specific sandwich), and bread that’s toasted properly. The mayo is Duke’s or Hellmann’s — full fat, nothing else will do. This is not a recipe where you can cut corners and expect results.
Why This BLT Recipe Works
- Thick-cut bacon is the foundation — thin bacon shrinks to near-nothing and turns to glass. Thick-cut renders properly, stays substantial, and gives the sandwich real body.
- Proper bread matters — a good country white, sourdough, or brioche toasted until genuinely golden. The toast structure holds the wet tomato and mayo without collapsing.
- In-season tomatoes only — a mealy, pale out-of-season tomato ruins this sandwich. In peak summer, there is no better food on the planet than a ripe heirloom tomato slice on a BLT.
- Full-fat mayo is non-negotiable — the fat in real mayo serves as both flavor and moisture balance for the bacon. Reduced-fat or substitute versions don’t have the right richness.
This belongs in your complete sandwich & wrap recipes arsenal. See also Cuban sandwich and classic Reuben for the full sandwich range.
Ingredients for the Classic BLT
Serves 2 | Prep: 10 min | Cook: 15 min
The Essentials
- 6-8 strips thick-cut bacon
- 4 slices good bread (sourdough, country white, or brioche)
- 2 large, ripe tomatoes (heirloom if available)
- 4-6 leaves iceberg lettuce
- 3-4 tablespoons full-fat mayonnaise (Duke’s or Hellmann’s)
- Salt and black pepper for the tomatoes
Optional Upgrades
- Avocado, sliced (makes it an ABLT — worth it)
- Fried egg (breakfast BLT territory)
- Hot sauce in the mayo (tablespoon of Frank’s, whisked in)
- Fresh basil leaves
How to Make a Classic BLT
Step 1: Cook the Bacon Properly
Place bacon strips in a cold skillet in a single layer. Turn heat to medium. Do not put cold bacon into a hot pan — starting cold renders the fat more gradually and produces crispier, flatter bacon. Cook for 4-5 minutes per side, adjusting heat as needed. You want the bacon to be uniformly crispy — no jiggly spots, no pale sections. Transfer to a paper towel-lined plate. The bacon needs to be this level of crispy or it slides around and the texture of the sandwich suffers.
Step 2: Prepare the Tomatoes
Slice the tomatoes into ¼ to ¾-inch thick slices. Season generously on both sides with salt and pepper. Let them sit for 2-3 minutes — the salt draws a small amount of moisture to the surface, concentrating the flavor. Don’t skip seasoning the tomatoes. An unseasoned tomato in a BLT is a wasted opportunity.
Step 3: Toast the Bread
Toast the bread until it’s genuinely golden — not pale, not brown-tipped-with-white-center, but uniformly golden throughout. A pale toast won’t hold up to the tomato moisture and will turn soggy. A proper toast maintains structure and adds its own flavor through the Maillard reaction. The toaster is fine. Cast iron with butter is better.
Step 4: Apply the Mayo
Spread mayo on both slices of toast, going all the way to the edges. The edges matter — a corner bite without mayo is a dry corner bite. The mayo creates a moisture barrier between the bread and the tomato, slowing the sogginess. Use more than you think you need.
Step 5: Build the Sandwich
On one slice: layer the lettuce first (closest to the bread), then the bacon (on top of the lettuce — the lettuce cushions the hot bacon from the bread), then the tomato slices (on top of the bacon). Finish with any optional additions (avocado, fresh basil). Close with the second slice, mayo side down. Press lightly.
Step 6: Cut and Serve Immediately
Cut diagonally — the classic triangle cut exposes more of the cross-section and is the correct cut for this sandwich. Serve immediately. A BLT is a strictly in-the-moment sandwich. It does not hold, it does not travel well, it does not improve with time. Make it, eat it, be happy.
Pro Tips & The BLT Rules
- Tomato season only. Out-of-season tomatoes ruin this sandwich. If good fresh tomatoes aren’t available, don’t make a BLT. Wait for summer or use cherry tomatoes halved (which hold their flavor better through more of the year).
- Iceberg lettuce for texture. The crunch of iceberg is structural in this sandwich. Soft lettuces collapse and add no textural counterpoint to the bacon. This is the one application where iceberg is the correct choice — don’t upgrade it.
- Bacon must be genuinely crispy. Any softness in the bacon creates a different sandwich. The crunch of the bacon and the crunch of the lettuce are the textural backbone. Don’t pull the bacon early.
- Cold mayo on hot toast. The contrast of cold mayo against hot, freshly toasted bread is part of the experience. Don’t pre-toast the bread and let it sit.
- Salt the tomatoes. Always. Even 2-3 minutes of salt contact brings out flavor that’s absent from unseasoned tomato slices.
BLT Variations
- ABLT: Add avocado. The fat and creaminess of avocado bridges the gap between the bacon and mayo beautifully. Not a variation — an upgrade.
- BLT Pasta Salad: The classic summer potluck adaptation — pasta, bacon, cherry tomatoes, romaine, mayo-based dressing. All the BLT flavors in shareable form.
- BLT Grilled Cheese: The BLGC. Sourdough, American or cheddar cheese, bacon inside, LT added after grilling. The greatest hot sandwich that isn’t a Reuben. See classic Reuben sandwich for context.
- Open-Faced Fancy Version: Sourdough toast, heirloom tomato, thick-cut bacon, a swipe of garlic aioli, fresh basil, and a perfectly fried egg. Call it a brunch BLT. Charge twelve dollars for it if you have the venue.
- Muffuletta Crossover: Apply the olive tapenade technique from muffuletta sandwich as a mayo substitute for an Italian-American BLT hybrid.
The Storage Reality
- BLTs don’t store. The tomato moisture, the heat of the bacon, and the mayo create a combination that deteriorates rapidly. A BLT is best eaten within 10 minutes of assembly.
- Components store separately: Cooked bacon refrigerates for 5 days. Sliced tomatoes can be prepped and kept separately for a day. But the assembled sandwich is an eat-now situation.
- For meal prep: Cook a large batch of bacon, refrigerate, and reheat in a skillet (2 minutes) or microwave (30 seconds, paper towel covered) when needed.
Frequently Asked Questions
What’s the best bread for a BLT?
Sourdough or a good country white, toasted. The bread needs enough structure to not collapse under the tomato moisture, and enough flavor to contribute to the sandwich. Thin sandwich bread collapses; very dense artisan bread dominates. Toasted sourdough hits the balance perfectly.
Can I use turkey bacon?
You can. You’ll have a different sandwich. Turkey bacon doesn’t render fat the same way and lacks the depth of flavor of pork bacon. If dietary requirements call for it, go ahead — but understand it’s a turkey bacon sandwich, not a BLT in the classical sense.
What kind of mayo is best?
Duke’s (preferred in the South) or Hellmann’s (everywhere else). These are the real mayonnaises. Full fat. No exceptions for a BLT. The mayonnaise is not a background player in this sandwich.
Egg salad BLT hybrid?
Yes. Absolutely. Egg salad on toasted sourdough with bacon and iceberg lettuce is exceptional. See classic egg salad sandwich for the base recipe, then add bacon and the standard BLT assembly.
