Using a box grater, grate the cucumber. You should have around 1 cup of grated cucumber. Transfer the grated cucumber to a cheese cloth or clean thin kitchen towel, and strain out as much liquid as you can into a bowl. Reserve the liquid for a cocktail, like my cucumber mojito cocktail linked below.
In a blender, combine the vegan yogurt, tofu, cashews (if using) and garlic until a thick “greek yogurt” like consistency is achieved.
Transfer to a bowl, and mix in the red wine vinegar, fresh dill, salt, pepper and drained cucumber.