01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - Cut the pressed tofu into 3/4 inch cubes.
03 - In a bowl, gently toss tofu cubes with cornstarch, oil, salt, and pepper until evenly coated.
04 - Arrange tofu in a single layer on the prepared baking sheet. Bake for 25-30 minutes, flipping halfway, until golden and crisp.
05 - While tofu bakes, whisk together all chili sesame sauce ingredients except the cornstarch slurry in a small saucepan.
06 - Bring sauce to a simmer over medium heat, then add cornstarch slurry, stirring constantly until thickened (1-2 minutes). Remove from heat.
07 - Transfer baked tofu to a large bowl. Pour over the hot chili sesame sauce and toss to coat evenly.
08 - Garnish with toasted sesame seeds and green onions. Serve hot as an appetizer or over steamed rice or noodles.