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Dinner · Part 1 of 3: Ingredients

Ultimate Sourdough BLT with Smoky Bacon and Basil Aioli

A close-up of a perfectly constructed sourdough BLT showing crispy bacon, vibrant tomato, and fresh lettuce.
Prep
Cook
Total
Serves
2
Includes 5 min resting

Discover how to transform a simple BLT into a gourmet masterpiece. By combining high-quality ingredients like heirloom tomatoes and freshly candied bacon, you create a sandwich that defines the perfect summer meal. This recipe focuses on technique, using rendered fat to achieve unparalleled crispness in the bread, ensuring that every single bite is packed with intense, savory flavor and satisfying textural contrast.

The legendary sourdough BLT is all about balance. It relies on the interplay between the smoky, sweet bacon, the acidity of the heirloom tomato, and the cooling, herbaceous punch of a homemade basil aioli.

By paying attention to how each component is prepared—from the oven-baked, sugar-dusted bacon to the skillet-toasted sourdough—you elevate a lunch staple into a culinary experience. This method ensures that the bread remains crunchy despite the juicy tomato, creating a structural integrity that holds up until the very last bite.

Ingredients

Makes 2 sandwiches · serves 2

Sandwich Components

  • 8 strips thick-cut applewood smoked bacon
  • 1 tsp cracked black pepper
  • 1 tbsp maple sugar
  • 1 ripe Cherokee Purple heirloom tomato, sliced

Basil Aioli

  • 1/3 cup fresh basil garlic mayo

Sandwich Components

  • 2 slices thick sourdough bread
  • 2 tbsp rendered bacon fat
  • 2 leaves crisp lettuce
Contains: eggs, gluten
Food safety: This recipe contains raw egg yolk in the mayonnaise. Use pasteurised eggs for pregnant women, young children, older adults and anyone with a weakened immune system.

Why this recipe works

The method of baking bacon on a wire rack ensures consistent heat distribution, allowing the fat to render completely while the sugar creates a delicate, caramelized crust.

This prevents the bacon from becoming greasy or unevenly cooked, resulting in a perfectly crispy texture that is essential for a high-quality sandwich. Using the rendered fat to toast the sourdough bread adds a deep layer of flavor that standard butter or oil cannot replicate, infusing the bread with savory, smoky notes.

Ready to start cooking right away?📖 Jump to Part 2 — Step-by-Step Method →

Layering the ingredients in a specific order helps maintain the integrity of the sandwich. By placing the aioli directly on the toasted bread, you create a moisture barrier that prevents the juices from the heirloom tomatoes from making the bread soggy.

The combination of crispy lettuce and dense, fresh sourdough provides the necessary structural support, ensuring that the heavy, flavorful bacon and tomato slices remain securely positioned throughout the eating process, resulting in a clean and enjoyable experience.

Notes and substitutions

Selecting the right ingredients is crucial. Opt for thick-cut applewood smoked bacon, as the thickness provides a better chew and the smoke profile complements the sweetness of the maple sugar. When choosing heirloom tomatoes, look for ones that feel heavy for their size, as this indicates juiciness. If Cherokee Purple tomatoes are unavailable, any large, flavorful variety will work, provided it is ripe and has a deep, rich color.

Equipment choice matters for the best results. A heavy cast iron skillet is ideal for toasting the bread in bacon fat, as it retains heat efficiently and provides an even sear.

Ensure the wire rack used for the bacon is sturdy and fits well within your baking sheet to prevent any mess. A sharp serrated knife is non-negotiable for slicing the tomatoes and the final sandwich to avoid damaging the ingredients and to achieve a clean presentation.

  • Maple sugar: Brown sugar or honey
  • Cherokee Purple heirloom tomato: Any large, flavorful vine-ripened beefsteak tomato

Equipment

  • Baking sheet
  • Wire cooling rack
  • Cast iron skillet
  • Food processor
  • Sharp chef knife

Coming up in Part 2: the method

  1. Baking the candied bacon · 1 stepPrepare the crispy bacon
  2. Preparing fresh components · 1 stepBlend the aioli and slice produce
  3. Toasting and final assembly · 1 stepToast the bread and assemble

Up next · Part 2 of 3

3 steps · 18 min of cooking · what to look for at each stage

Step-by-step instructions (Part 2)