Step 1: Make the Tempeh Bacon Marinade

In a shallow dish, whisk together the soy sauce (or tamari), maple syrup, liquid smoke, and olive oil until well combined.

Step 2: Marinate the Tempeh

Add the sliced tempeh strips to the marinade, ensuring that they are evenly coated.

Let the tempeh marinate for at least 15 minutes (or longer, up to a few hours, for a more intense flavor). The longer it marinates, the more flavorful it will be.

Step 3: Cook the Tempeh Bacon

Heat a non-stick pan or skillet over medium heat.

Add the marinated tempeh strips to the pan in a single layer (you may need to cook them in batches).

Cook the tempeh for 3-4 minutes per side, or until it’s browned and crispy. Remove the cooked tempeh from the pan and set aside.

Step 4: Toast the Bread (Optional)

Toast the bread slices until they’re golden brown and slightly crispy. You can use a toaster, a toaster oven, or a dry pan on the stovetop.

Step 5: Assemble the Sandwiches

Spread a generous layer of vegan mayonnaise on one side of each toasted bread slice.

On four of the bread slices, layer the cooked tempeh bacon, tomato slices, and lettuce leaves.

Season with salt and pepper to taste.

Top with the remaining bread slices, mayonnaise-side down, to form sandwiches.

Step 6: Serve

Cut the sandwiches in half if desired, and serve immediately.