Press the Tofu: Place several layers of paper towels on a plate and set the whole tofu block on top. Cover it with more paper towels, then place a second plate over the tofu. Let it sit for 30 minutes so the excess liquid is pressed out. Prepare the Vegetables: While the tofu presses, thinly slice the cucumbers and jalapeño.Set the vegetables aside along with the cilantro, pickled carrots, and pickled daikon. Cut the Tofu: Once pressed, cut the tofu into pieces measuring approximately 1 inch × 2 inches.
Heat the Oil: Pour neutral oil into a frying pan until it reaches about 1 inch up the sides of the pan. Heat the oil to 270°F.
Fry the Tofu: Working in batches, carefully fry the tofu for 5–10 minutes, turning as needed, until the pieces are golden.If the oil does not completely cover the tofu, fry each piece for about 5 minutes per side. Drain and Season: Transfer the fried tofu to a bed of paper towels to absorb excess oil. While the tofu is still hot, sprinkle it with salt. Cool and Slice: Allow the tofu to cool for 5 minutes, then slice each piece in half lengthwise.
Toast the Baguettes: Slice each baguette in half and toast the bread for a few minutes until lightly crisp.
Add the Sauces: Spread sriracha and mayonnaise over one side of each sandwich. Drizzle soy sauce over the other side and add the pepper. Fill the Sandwiches: Arrange the sliced tofu, cilantro, cucumber, jalapeño, pickled carrots, and pickled daikon inside each baguette.Adjust the amount of each filling to your preference. Serve: Repeat the assembly for all four sandwiches and serve the tofu banh mi while the toasted bread and fried tofu are fresh.