Cut spinach into 3–4 cm pieces and slice the onion thinly.

Wrap silken tofu in paper towels and microwave at 600W for 2 minutes to drain water. Mix until smooth and combine with remaining sauce ingredients.

Boil 100cc of water in a pan, add spinach, cover, and cook for 1 minute. Stir until wilted, then drain and squeeze out excess water.

Heat salad oil in a pan, cook pork until color changes, then add onion and sauté until soft. Add spinach back and season with salt and pepper.