Tantanmen Recipe

8 cups homemade chicken stock

2 tablespoons peanut butter

2 tablespoons soy sauce

1 1/2 tablespoons miso paste

1 table spoon chili bean paste

1 table spoon sesame oil

2 teaspoons japanese chili powder

1 teaspoon sugar

1 table spoon vegetable oil

1 piece (1-inch) ginger, grated

3 cloves garlic, minced

2 tablespoons soy sauce

1 table spoon chili bean paste

1 table spoon sake (japanese rice wine)

1 teaspoon sesame oil

4 pack (100-gram) fresh ramen noodles, (available at Japanese groceries)

4 bundles bok choy (chinese leafy cabbage), blanched

leeks, for garnish (optional)