The key to a great vegetarian BLT sandwich is using sandwich bread you’re excited about, and being extremely generous with the avocado spread. As for baking up great tofu, be sure to look for extra-firm tofu and, while many people will have you marinating the tofu in a freezer bag, I find that even the firm tofu is quite delicate and for that reason I like to marinate it in a single-layer in a baking dish. Feel free to double the tofu recipe to have extra on hand for salads, grain bowls, wraps or sandwiches throughout the week. Oh, and the avocado spread, too. You can’t have too much of the stuff.
Note: The baked tofu does take a minimum of two hours to marinate, so just be sure to plan accordingly.
Wrap the tofu in a few layers of paper towels, and lay on a plate. Place another plate on top of the wrapped tofu and put something heavy (a can of tomatoes works great) on top to weigh it down. Let stand for 20-30 minutes to help drain the tofu of excess liquid.
In a small mixing bowl, whisk together the nutritional yeast, soy sauce, Sriacha, maple syrup, rice vinegar, water, smoked paprika, garlic powder, onion powder, and pepper.
Unwrap the tofu and, using a dry paper towel, wipe it dry. Slice the tofu into relatively thin 1/4-inch slices (depending on how your tofu is packaged, you should yield about 10-12 slices) and lay flat in a single layer in a baking dish. Pour the marinade over the tofu and gently spread so each slice is covered. Refrigerate for at least 2 hours, or up to 8 hours.
Preheat the oven to 375 F. Line a baking sheet with parchment paper or a silicone baking mat. Leaving behind any excess marinade/liquid, place tofu slices on the prepared baking sheet in a single layer and bake for 15 minutes. Flip tofu slices and bake an additional 15 minutes; the tofu will firm up a bit as it cools.
While the tofu is baking, make the avocado sauce: scoop the avocado, garlic, mayonnaise, lemon juice, salt, black pepper and cayenne pepper into the bowl of a food processor or blender. Process until smooth. Add the basil leaves and pulse until well combined (it’s ok if there are little bits of basil visible in the spread).
To assemble the sandwiches: toast the bread. Spread a thick layer of avocado spread on the top of each slice. Lay a few slices of tofu on one slice of the bread, spread avocado spread on top of that tofu layer, and lay another layer of tofu slices on top of that. Top with a few slices of tomato and two slices of Bibb lettuce and place one of the remaining slices of bread on top, avocado side down. Repeat with the second sandwich. If you like, carefully slice the sandwich in half with a good serrated knife.