Prepare Tofu/Marinade:

1. Combine miso ingredients in small saucepan and heat gently until miso and sugar are dissolved.  Let cool.
2. Press excess water from tofu, cut into cubes.  Marinate tofu in cooled miso marinade about 30 minutes (can marinate longer if desired).
3. Remove tofu from marinade and place in single layer in air fryer (be sure the pieces are not touching and make in a couple batches if necessary). Cook 400°F for about 8-10 minutes, shaking the basket halfway through cooking. Set aside cooked tofu.

Make the Sauce/Noodles:

1. Heat 1/2 cup neutral flavored oil in saucepan over medium. Turn off heat, add ginger, garlic and half of the sliced scallions.  Let mixture infuse 5 minutes then stir in remaining scallions, soy sauce, rice wine vinegar, pepper, sesame oil and sugar.  Season with salt. Set aside for flavors to combine. Taste and adjust seasoning.
2. Cook noodles according to package directions.  Drain.

To Serve:

Toss the noodles with the sauce.  Gently add the tofu to combine (or add tofu on top of noodles once plated).  Top each serving with desired garnishes.