The Ultimate Heirloom & Thick-Cut BLT

🌍 Cuisine: American
🏷️ Category: Main Course
⏱️ Prep: 15 minutes
🍳 Cook: 20 minutes
👥 Serves: 2 servings

📝 About This Recipe

A cornerstone of American diner culture, the BLT is a masterclass in contrasting textures and temperatures. This version elevates the humble sandwich by pairing salt-cured, oven-rendered thick-cut bacon with juicy heirloom tomatoes and a zesty herb-infused aioli. It is the quintessential summer comfort food, celebrating the peak of harvest season with every crunch and savory bite.

🥗 Ingredients

The Foundation

  • 8 strips Thick-cut smoked bacon (hickory or applewood smoked)
  • 4 slices Sourdough bread (large, 1/2-inch thick slices)
  • 2 tablespoons Unsalted butter (softened)

The Produce

  • 2 large Heirloom tomatoes (ripe, sliced into 1/2-inch thick rounds)
  • 4 large leaves Iceberg lettuce (cold and crisp, washed and dried)
  • 1/2 teaspoon Flaky sea salt (for seasoning tomatoes)
  • 1/4 teaspoon Freshly ground black pepper (to taste)

The Signature Aioli

  • 1/2 cup High-quality mayonnaise (such as Duke's or Hellmann's)
  • 1 teaspoon Lemon juice (freshly squeezed)
  • 1 clove Garlic (finely grated or minced into a paste)
  • 1 tablespoon Fresh chives (finely minced)
  • 1 pinch Smoked paprika (for a subtle depth)

👨‍🍳 Instructions

  1. 1

    Preheat your oven to 400°F (200°C). Line a large rimmed baking sheet with parchment paper or a wire rack for maximum airflow.

  2. 2

    Lay the bacon strips in a single layer on the prepared baking sheet. Bake for 15-20 minutes, or until deep golden brown and crispy, but still slightly pliable.

  3. 3

    Transfer the cooked bacon to a paper-towel-lined plate to drain. Reserve 1 tablespoon of the warm bacon fat for the bread if desired.

  4. 4

    While the bacon cooks, slice the heirloom tomatoes into thick rounds. Place them on a paper towel and sprinkle both sides with flaky sea salt and black pepper; let them sit for 5 minutes to intensify the flavor.

  5. 5

    In a small bowl, whisk together the mayonnaise, lemon juice, grated garlic, minced chives, and a pinch of smoked paprika until smooth. Set aside.

  6. 6

    Prepare the lettuce by removing the tough ribs and tearing the leaves into pieces that roughly match the size of your bread slices.

  7. 7

    Heat a large skillet or griddle over medium heat. Lightly butter one side of each bread slice.

  8. 8

    Toast the bread in the skillet, buttered-side down, until beautifully golden brown and crisp, about 2-3 minutes. The other side should remain soft.

  9. 9

    Lay the toasted bread slices on a clean board, toasted-side down. Liberally spread the signature aioli on the soft, upward-facing sides of all four slices.

  10. 10

    On two of the slices, layer the crisp iceberg lettuce. Use enough to create a sturdy, crunchy base.

  11. 11

    Place 2-3 thick slices of seasoned heirloom tomato over the lettuce.

  12. 12

    Break the bacon strips in half and layer 8 half-strips (4 full strips) on each sandwich, overlapping them for full coverage.

  13. 13

    Top with the remaining bread slices, aioli-side down. Press down gently to marry the layers.

  14. 14

    Using a serrated knife, slice the sandwiches diagonally. Serve immediately while the bacon is warm and the lettuce is cold.

💡 Chef's Tips

Always salt your tomatoes 5-10 minutes before assembly; it draws out moisture and concentrates the sugars for a better flavor profile. Use a high-quality sourdough or brioche; standard white bread often collapses under the weight of juicy heirloom tomatoes. Oven-baking bacon ensures even cooking and prevents the strips from curling, making them easier to stack. Don't skip the lemon juice in the mayo; the acidity is crucial to cutting through the richness of the bacon and fat. For an extra kick, add a thin layer of sliced avocado or a dash of hot sauce to the aioli.

🍽️ Serving Suggestions

Serve alongside a pile of kettle-cooked sea salt and vinegar chips for maximum crunch. Pair with a cold glass of sweetened iced tea or a crisp pilsner beer. A side of creamy coleslaw or a simple potato salad complements the sandwich's savory profile perfectly. For a lighter option, serve with a cup of chilled tomato gazpacho during the summer months.