Lay your knife blade on top of the whole, unsliced cucumber and hit hard on the blade with your fist to smash the cucumber.
Halve it lengthwise then slice into bite-sized chunks.
Sprinkle with a good pinch of salt and set aside in a strainer.
Make the dressing by combining the rest of the ingredients in a big bowl.
After 10 minutes, rinse the salt off the cucumber, give it a little squeeze to drain more liquid then pat dry.
Add the cucumber to the dressing in the bowl and combine.
Place the tofu on a small plate, score it lightly with a knife then top with the rest of the ingredients. You can use soy sauce instead of salt if you like.