Start by pressing the tofu to remove excess water. Slice the tofu into 1-inch cubes and pat dry with paper towels.
In a bowl, toss the tofu cubes with cornstarch until evenly coated. This will help achieve a crispy texture when cooked.
Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat. Add the tofu and cook until golden and crispy on all sides, about 6-8 minutes. Remove and set aside.
In the same skillet, add another tablespoon of vegetable oil. Add the minced garlic and grated ginger, stirring for about 30 seconds until fragrant.
Next, add the sliced bell peppers and broccoli florets to the skillet. Cook for about 5 minutes, or until the vegetables are tender-crisp.
Reduce the heat to medium, and return the crispy tofu to the skillet. Pour in the sweet chili sauce and soy sauce, gently tossing everything together to coat. Cook for an additional 2-3 minutes until heated through, and the sauce slightly thickens.
Drizzle sesame oil over the stir fry and season with salt and pepper to taste. Toss well to combine.
Serve the sweet chili tofu stir fry hot, garnished with chopped green onions and a sprinkle of sesame seeds.
Notes
Serve over jasmine rice or quinoa for a complete meal.