Wash the broccoli thoroughly using flour and vinegar as described to remove impurities.

Cut the cleaned broccoli into bite-sized pieces.

Boil 150ml water with 0.5 tsp salt in a pan, then add the broccoli and cook for 1 minute while stirring.

Turn off the heat, add 0.5 tsp salt and 2 tbsp olive oil, stir well, and let sit for 1 minute.

Sprinkle 3 tbsp perilla powder generously over the broccoli and mix well.