Mix the tofu with the soy sauce, 2 teaspoon cornstarch and white pepper. Heat a wok or heavy skillet over high heat. when hot, add the oil. When the oil is hot, add the tofu and stir-fry until lightly browned. Add the green onions, garlic and chili garlic paste. Stir fry for 1 minute.
Add the bell pepper and brown bean paste. Stir fry for 2 minutes.
Stir the broth, 1 tablespoon cornstarch and sugar together, and add to the pan. Stir until thickened. Sprinkle the peanuts on top and serve immediately with rice.