Remove the excess liquid from the package, before extracting the silken tofu.
Place the tofu on a paper towel to soak up the excess liquid.
Heat some vegetable oil in a frying pan, on medium heat. Add the minced garlic and chopped onion. Saute until translucent. Be careful not to burn the onion and the garlic.
After they turn brown, lower the heat and pour the soy sauce, rice vinegar, sesame oil, vegetable broth, and sugar into the pan.
Let it simmer for a few minutes, stirring occasionally.
Pour the sauce over the silken tofu, which should be dried by now.
Add chopped scallions and chili pepper on top before serving.