Prepare the tofu: Carefully press the diced tofu between layers of a clean kitchen towel or paper towels, eliminating excess moisture for approximately 15 minutes. This step is essential for achieving a crispy texture during cooking.
Heat the oil: In a large skillet or wok, warm the vegetable oil over medium-high heat until shimmering.
Cook the tofu: Once the oil is hot, add the pressed tofu cubes to the skillet. Sauté for about 5-7 minutes, turning occasionally, until the tofu is golden brown and crisp on all sides. Remove the tofu from the skillet and set it aside on a plate.
Stir-fry the vegetables: In the same skillet, drizzle in the sesame oil. Add the minced garlic and grated ginger, stirring for around 30 seconds or until they release a fragrant aroma. Next, add the sliced red and green bell peppers, broccoli florets, and julienned carrots. Stir-fry everything together for about 5-6 minutes until the vegetables are tender yet still retain a slight crunch.
Combine tofu and sauces: Return the browned tofu to the skillet. Pour the sweet chili sauce and soy sauce over the mixture. Gently toss everything to ensure the tofu and vegetables are well-coated with the sauce. Cook for an additional 2-3 minutes, allowing the flavors to meld together.
Garnish and serve: Once the stir-fry is heated through, remove it from the heat source. Garnish generously with sesame seeds and fresh cilantro before serving.
Notes
Pressing the tofu is crucial for achieving a crispy texture.