Heat Sugar In To A Deep Heavy-Bottomed Sauce Pan Over Medium Heat Until Fully Melted And Caramelized. Nice Copper Color. Slowly Add Broth. Be Careful Because The Sugar Will Bubble And May Splatter A Bit. If The Caramel Solidifies, Don'T Worrie Just Keep Heating And It Will Melt Again. Add Fish Sauce, Shallot, Garlic, And White Parts Of Scallions. Bring To A Simmer Until Vegetables Translucent. Season Pork With A Ground Black Pepper And Add To Pot. Simmer Very Low For 75-90 Minutes. Serve With Rice And Top With Scallion Greens.