Preheat oven to 275º.
Combine all sauce ingredients and mix well. Set aside.
Combine flour, salt and pepper in a large bowl. Add short ribs and toss to coat ribs with flour.
Heat the oil in a Dutch oven over medium-high heat. When oil is hot, add the ribs and sear for 4 to 5 minutes on each side, until well browned.
Add soy sauce mixture and bring to a boil. Cover tightly and place Dutch oven in preheated oven for 2 ½ to 3 hours or until the ribs are tender enough to be easily pierced with a fork. Check about half way through baking time to make sure that liquid is covering beef. If needed add more apple juice.
When meat is tender remove ribs from sauce. Place Dutch oven on stove top and bring sauce to a boil over high heat. Reduce heat to medium and continue boiling until the liquid reduces to half its original volume, 20 to 30 minutes. Return ribs to sauce and keep warm until serving time or allow to cool and refrigerate. Can be made 1-2 days ahead. Warm over low heat before serving.
For gremolata, combine all ingredients and mix well. Can be made 4-6 hours ahead and refrigerated.
To serve place ribs on serving platter or individual plates. Drizzle with sauce. Sprinkle liberally with gremolata and ENJOY!