Mix all the ingredients in the Char Siu Sauce together, stir to combine well.
Add the garlic and the Char Siu Sauce to the pork belly. Stir to coat well. Transfer it to a baking sheet lined with parchment paper. Roast for a total of 30 minutes, turning the pork belly over at 15 minute interval. Remove from the oven, and sliced into pieces. Set aside.
To make the ramen, boil two cups of water in a pot. Add the noodles and cook for 4 minutes or until al dente. Meanwhile, empty the flavor pouches of Nissin RAOH Tonkotsu in a serving bowl.
Remove the noodles from heat and pour the water into the bowl first and mix the seasonings well with a pair of chopsticks. Add the noodles into the bowl and mix again.
Add the char siu, ramen egg, scallion and beni shogu. Repeat the same for the second serving.
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Notes
You can broil both sides of the pork belly for 1 minute if you want the char siu slightly burned and charred.