Summer Heirloom BLT Sandwich

This Summer Heirloom BLT Sandwich layers crispy pancetta, juicy heirloom tomatoes, creamy avocado, and fresh basil over toasted whole grain bread. A rich garlic egg aioli adds a savory twist to this seasonal classic — perfect for warm-weather lunches and casual entertaining.

Course Lunch, Main Course, Sandwich

Cuisine American

Keyword avocado BLT, BLT variation,, fresh basil sandwich, garlic aioli sandwich,, heirloom tomato recipe,, pancetta sandwich, summer sandwich

Prep Time 20

Cook Time 15

Total Time 35

Servings

Calories 620kcal

Author angela@mealstreetkitchen

Equipment

Sheet pan
foil
mixing bowl
Mortar and pestle (or knife and cutting board)
Knife
Cutting board

Ingredients

For the Egg Aioli

1/2 cup good quality mayonnaise
1/2 tablespoon pureed fresh garlic about 3 cloves
2 hard-cooked egg whites finely chopped
Freshly ground black pepper to taste

For the Sandwich

8 slices whole grain seeded bread
8 slices pancetta
2 heirloom tomatoes sliced
2 medium avocados sliced
Baby lettuces or 4 leaves leaf or Bibb lettuce
1 bunch fresh basil leaves

Instructions

Make the Egg Aioli

In a small bowl, add the mayonnaise.
Puree the garlic using a mortar and pestle, or mince and mash with the side of a knife until smooth and paste-like.
Stir the garlic puree into the mayonnaise.
Add the chopped egg whites and season with freshly ground black pepper.
Stir until well combined. Set aside.

Cook the Pancetta

Preheat oven to 375°F.
Arrange pancetta slices on a greased, foil-lined sheet pan.
Bake for about 15 minutes, turning once halfway through, until crisp.
Remove and drain on paper towels if needed.

Assemble the Sandwich

Lightly toast the bread slices.
Spread a generous layer of egg aioli on the bottom slice of each sandwich.
Layer with lettuce, crispy pancetta, sliced tomato, avocado, and fresh basil leaves.
Top with remaining toasted bread slices.
Secure with sandwich picks if desired.
Slice in half and serve immediately.

Notes

For extra flavor, sprinkle tomatoes lightly with sea salt before assembling.
Pancetta can be substituted with thick-cut bacon if preferred.
Best enjoyed immediately to prevent avocado browning.
To make ahead, prepare aioli up to 2 days in advance and refrigerate.

Nutrition