Toasted Bacon Lettuce Tomato Sandwich on Sourdough Bread

The contrast between cool, juicy tomato and crisp lettuce layered with salty, perfectly cooked bacon on warm, toasted sourdough bread is what makes this classic BLT sandwich impossible to resist. Simple, satisfying, and packed with flavor, this toasted bacon lettuce tomato sandwich on sourdough bread is a delicious go-to meal for breakfast, lunch, or a quick and easy dinner.

Getting a restaurant-style BLT at home is all about the small details. Toasting the sourdough until it’s golden and crisp on the outside while staying soft inside, using thick-cut bacon cooked just right, and layering ripe, in-season tomatoes and crispy lettuce makes a noticeable difference. A light spread of mayo and thoughtful assembly turn this simple sandwich into something that feels like something you’d order at a café, but cheaper, faster, and without having to leave your kitchen.

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This recipe is quick, taking only about 10 minutes to prepare, making it great for busy weeknights or an easy breakfast or brunch.

Ingredients:

For each sandwich, you need:

• 2 slices sourdough bread
• 2 tbsp mayonnaise
• 4-6 slices cooked bacon (or more or less to your taste)
• 2-3 1/4″ slices tomato
• 2-3 crispy lettuce leaves

Instructions:

1. Toast sourdough bread slices to your desired level
2. Slice a tomato into 1/4″ slices
3. Pull off 2 to 3 leaves of firm, crisp lettuce
4. Once bread has been toasted, spread 1 tbsp of mayonnaise on each slice of bread
5. Begin with one slice of bread with mayonnaise side up
6. Add a layer of bacon to cover the area of the bread
7. Add a layer of sliced tomato to cover the bacon
8. Add a final layer of crisp lettuce to cover the tomato
9. Place the 2nd slice of sourdough bread on the top of the sandwich, mayonnaise-side down
10. Use a sharp knife to cut the sandwich in half
11. Enjoy!

Tips for success

1. Toast the bread properly: Toast the sourdough until it’s golden and crisp on the outside but still soft in the middle. This texture contrast is key to the structure of the sandwich.
2. Use ripe tomatoes: Tomatoes are the star. Use ripe, in-season tomatoes when you can for that summer flavor.
3. Cook the bacon just right: Crispy, not burnt. Cook the bacon until it’s well-rendered and crisp enough to snap but still slightly chewy. Drain it well so excess grease doesn’t soak into the bread.
4. Build with intention: Spread mayo edge-to-edge on the toasted bread. Layer bacon directly on the bread, then tomatoes, then lettuce to keep everything crisp and prevent a soggy sandwich.

Variations and Substitutions

1. Avocado BLT

Add sliced or smashed avocado for extra creaminess. It balances the salty bacon beautifully and makes the sandwich feel more filling and heartier.

2. Garlic Aioli BLT

Swap regular mayo for garlic aioli or mayo mixed with roasted garlic. It adds a rich, restaurant-style flavor with almost no extra effort.

3. Spicy BLT

Add heat with sliced jalapeños, chipotle mayo, or a drizzle of hot sauce. The spice cuts through the richness and gives the sandwich a bold kick.

4. Make it Low-Carb / Keto-Friendly

Swap sourdough for low-carb bread and add avocado or extra bacon to boost healthy fats

5. Make it Gluten-Free

Use gluten-free sourdough or sandwich bread and toast bread well for better structure and texture