Latin braised pulled beef

Ingredients  (4 Servings) 2 pounds flank steak 8 cups beef or vegetable stock Pinch of sea salt ½ teaspoon fresh ground pepper 1 Tbsp. cumin ½ cup chopped fresh garlic ½ onion 2 bay leaves Sauce: 2 tsp rapeseed oil 1 cup chopped scallions 2 cups fresh chopped tomatoes 2 cloves garlic, minced 1 Tbsp.…