How to cook nutritious beef cabbage roll skewers

How to cook nutritious beef cabbage roll skewers
[Ingredients]
10 cabbage leaves, 300g beef (for bulgogi), 40g chives, 10 medium anchovies, 3 pieces of kelp (5g), 1.5L water, 2 tbsp soy sauce, 1 tbsp sesame oil, a little pepper powder, 10 skewers
Soy sauce seasoning: 2 tbsp soy sauce, 1 tbsp mirin, 1/2 tbsp minced mustard
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