Combine the ingredients for the tofu marinade in a large bowl or zip lock and mix well to combine.
Add your diced tofu and marinate for at least 30 minutes or overnight.
Remove the tofu from the marinade and pat dry.
Toss in cornstarch, tapping off any excess.
Heat canola oil over medium-high heat. Sear tofu on each side until slightly golden brown. Remove and set aside while you prep the remaining ingredients.
Soba Noodle Bowls
Cook soba noodles according to package instructions, usually boil about 3-5 minutes then immediately drain under cold water.
While the soba noodles are cooking, mix together the ingredients for the dressing (soy sauce, mirin, Sambal Oelek, and sesame oil.
Top the soba noodles with your seared tofu, sliced cucumbers, and carrots. Add green onions, cilantro, and peanuts for garnish before drizzling with the dressing.