Costco's Tonkotsu ramen is one of their most popular ramen items. The nice part about the dish is that the noodles can be cooked to your liking and the heat level is controllabe.
Completely remove the lid, soup base & spicy sauce packet.
Pour room temperature water up to the inside line (330 ml, about 3/8 cups).
Microwave for 4 minutes. Add soup base and serve.
For Al dente noodles, cook them for only 3 and a half minutes.Medium Noodles will cook for the default 4 minutes.Soft noodles will need an additional 30 seconds bringing the total cook time to 4 and a half minutes.