In a bowl, combine cilantro, scallions, garlic cloves, a shallot, ginger, bread crumbs, an egg, and Red Boat Fish Sauce. Give it a good mix before adding ground pork. Mix until just combined, being careful not to overmix, as this can make the meatballs tough.
Preheat the oven to 400F. Roll the meatballs into 1 inch balls. Place them on a parchment paper-lined baking sheet, ensuring there is enough space between each meatball to avoid overcrowding.
Bake at 400F for 20-25 minutes or until the internal temperature reaches 145F. Flip halfway.
To make the glaze, to a pan, add garlic, Thai chilies, 2 cups of water, Red Boat Fish Sauce, rice vinegar and sugar. Bring to a boil and let it reduce by ⅓.
In a small bowl, mix together 2 tablespoon of water and 1 tablespoon of cornstarch, until cornstarch has dissolved. Add the cornstarch slurry to the pan and stir to combine. Bring the glaze to a boil until it thickens.
Add in the meatballs and toss in the glaze. Remove from heat and garnish with extra scallions and cilantro.