Couple experiments with making tofu replicate the texture and fishiness of salmon.
Marinade is full of seaweed(flavor) and beet juice(color).
The “skin” is made with rice paper and nori. Struggled to keep the skin stuck to the tofu, and varying cook methods achieved varying levels of crispness. But on the whole- great stuff. Great excuse to eat a block of tofu with pretty minimal prep.
I don’t know if a vac sealer would help, but I have no experience with one. I’ve seen a recipe that uses one to get marinade deep into a mushroom steak, but mushrooms are not the same as tofu!
Give it a try and report back!