Using a mandoline slicer or a sharp knife, slice the tempeh into thin, even sheets, approximately 0.5 cm (¼ inch) thick.
Cut those sheets into long, irregular strips that are more natural than perfect rectangles.
In a cup or bowl, whisk together the tamari, toasted sesame oil, liquid smoke, smoked paprika, onion powder, garlic powder, molasses, sriracha, and maple syrup until smooth.
Place the tempeh strips into a pie pan or wide shallow bowl and cover with the marinade. Turn each piece to coat all sides evenly. Let marinate for 20 minutes, carefully flipping once halfway through.
Heat the oil in a large nonstick or cast iron skillet over medium heat. After 90 seconds when the oil is hot, place several tempeh strips in the skillet without overlapping. Fry for 2 to 3 minutes per side, turning once, until browned and crisp on the edges. Repeat with the remaining tempeh, adding more oil to the skillet as needed.
Place all cooked tempeh back into the pan and pour any remaining marinade over it. Continue cooking until all liquid has either absorbed or evaporated.
Transfer the cooked strips to a clean kitchen towel or rack to cool and stiffen briefly before serving.