Cut the soft tofu into bite-sized pieces.
Soak the rice cakes in cold water to soften.
Heat some cooking oil in a pan and stir-fry minced garlic.
Add the rice cakes and stir-fry lightly.
Pour in water, soy sauce, red pepper powder, and salt, then bring to a boil.
Once it begins to boil, add the soft tofu and simmer on low heat for about 5 more minutes.
Finish by adding chopped green onion and a drizzle of sesame oil.