In a bowl, mix soy sauce, water, gochugaru, sugar, sesame oil, sesame seed, garlic, and scallions.
In a medium pan, heat 2 tbsp of neutral oil over medium high heat. Pan fry tofu 2 minutes per side until golden brown on each side.
Add sauce and braise the tofu for 5-6 minutes over medium heat until the sauce has reduced and thickened slightly. Serve with steamed rice and enjoy!
Notes
This recipe calls for firm tofu - firm tofu is ideal for braising, as it won't fall apart while cooking. Cut your tofu evenly into 1/2" to 1" thick rectangles and pat dry with a paper towel to remove any excess moisture. I prefer my pieces a little on the thicker side so I can get more color on them when searing them in the pan!Gochugaru is Korean red chili pepper flakes (or powder, depending on which version you purchase). It's vibrant in color and smoky in flavor, and while the heat level varies, it's definitely on the spicy side. I recommend you adjust the amount based on your spice tolerance level. The recipe calls for 1 tbsp of gochugaru per 1 14-oz package of firm tofu. For me, this was about a 6 out of 10 on the spice scale, so you can adjust the amount of chili pepper flakes according to your taste.