The London broil should be about an inch thick. Fillet in half to make two pieces about 1/2 inch thick. Place pieces in a zip lock bag and remove air. Beat with a mallet until meat is tenderized and less than 1/4 inch thick. Lay pieces out on a cutting board. Overlap just a little bit. Sprinkle with all of the spices well. Evenly spread hoisin and black bean sauce over meat.

Place fish on a cutting board. Remove all bones and skin. Fillet into 1/4 inch thick pieces.

Lay fish over beef.

Carefully roll everything up. Tie well with butchers twine.

Heat a dry pan on medium heat. Sear beef roll on all sides. Sprinkle with more seasonings on each side as you flip meat. When evenly seared, transfer to a baking dish. Add 1/2 cup sherry to the pan. Deglaze. Let reduce by half. Spoon over meat. Cover tightly with foil. Bake at 425 for 20 minutes.

Meanwhile, add a touch of oil to another frying pan. Heat on medium low. Add shallots. Saute until they just start to brown. Add garlic and brown sugar. Saute 3 more minutes. Add remaining 1/4 cup of sherry and vinegar. Saute until liquid is gone. Set aside.

When steak roll cooks 20 minutes, remove foil. Baste with teryaki glaze. Return to oven for 5 minutes uncovered. Repeat a second time.

Remove from oven and tent with the foil. Let rest 10 minutes.

Remove twine and slice into 1 inch slices. Arrange on a plate. Spoon the pan liquor over the top. Garnish with carmelized shallots. Serve immediately. Enjoy.