Press the tofu for 15 minutes. Then, transfer it to a freezer-safe sealable bag or container. In a medium bowl, whisk together the tamari, sesame oil, chili garlic sauce, rice wine vinegar, maple syrup, and garlic. Pour the marinade over the tofu. Tightly seal the bag and place it in the freezer for at least 8 hours, or overnight.
The next day, remove the tofu from the freezer and allow it to thaw completely in the refrigerator, about 8 hours. If you can, flip the tofu around every few hours so that all sides of the tofu block can soak up the marinade.
Preheat the oven to 400°F. Line a baking sheet with parchment paper.
Remove the tofu from the bag and pat it dry. Discard the remaining marinade. Cut the tofu into 1-inch cubes and place in a medium bowl. Toss the tofu cubes with the 2 teaspoons of avocado oil to coat. Then, toss with the arrowroot starch and pepper until evenly coated.
Arrange the tofu cubes on the prepared baking sheet. Slide the baking sheet into the oven and roast until deep golden brown, about 30-35 minutes, flipping the cubes over at the halfway point.
While the tofu is roasting, make the sesame garlic sauce. In a sealable jar, combine the tamari, maple syrup, tahini, lime juice, sesame oil, garlic, and sesame seeds. Shake the jar to combine and set aside.
Serve the tofu hot with cooked rice/noodles, sautéed/steamed vegetables, or greens. Drizzle sesame garlic sauce on top to finish.