In a medium bowl, combine tofu, tamari, lemon juice, maple syrup, sriracha, and garlic powder, stirring gently to coat. Let marinate 15-20 minutes, stirring gently once or twice.
Heat coconut oil in a large cast iron skillet over medium heat. Once hot, add tofu and fry 2-3 minutes per side until crisp and golden. Add any leftover marinade to the pan and cook, stirring, one minute more.
Remove tofu from the pan and serve as desired.
How to press tofu
Use a tofu press, or slice the tofu in half like a book, then stack on a plate with a few sheets of paper towels around both halves. Place something heavy like a cast iron skillet on top and let press 10-60 minutes. The longer you press, the more firm the tofu will be.
Tips for customizing
Add more sriracha to the marinade or drizzle it on when serving for extra heat