Preheat oven to 200C. Remove tofu from packaging and sandwich between clean dry tea towel, then place on large plate and weight with something heavy (e.g. cans of food). Chill in fridge for few hours/overnight.
Mix sesame oil with five-spice powder, remove pressed tofu from tea towel and cut each block into 6 slices.
Toss sliced tofu in oil and spice mixture, tip onto baking sheet and place in oven to roast for 45mins, until golden. Then cut into thin slices.
Steam pancakes according to pack instructions. Serve with hot spiced tofu, shredded cucumber and spring onions and bowl of hoisin sauce.