Grate the garlic into a bowl and mix with all the remaining glaze ingredients. Set aside.
Pat the tofu dry and peel into thin slices. Toss in cornflour until evenly coated, shaking off any excess.
Rinse the rice, tip into a saucepan with the water and salt, cover and bring to the boil. Turn to the lowest heat and leave covered for 12 minutes.
Heat a large frying pan over high heat with a drizzle of oil. Fry the tofu for 3–4 minutes until golden and crispy on all sides.
Reduce the heat to medium, pour over the glaze and toss to coat. Cook for 2–3 minutes until the sauce thickens into a sticky glaze.
Steam the pak choi for 2–3 minutes until just wilted.
Fluff the rice and divide between bowls with the pak choi and char siu tofu. Finish with spring onions and sesame seeds.
