Easy Dubu Jorim (Spicy Korean Braised Tofu)

Name: Easy Dubu Jorim (Spicy Korean Braised Tofu)
Prep time: 5 min
Cook time: 20 min
Total time: 25 min
Cuisine: Asian, Korean
Ingredients: 1 block firm tofu; 2 cloves garlic, finely chopped; 1 medium onion, finely chopped; 2 green onions (white & green parts separated); 1 tsp salt; 1 tsp sugar; 1 tbsp soy sauce; 1 tbsp gochugaru; ½ cup water; 1 tsp sesame oil; Toasted sesame seeds; 4 tbsp oil (for frying)