Preparation:
combine clam juice and saffron in a small bowl-mix well heat butter in a skillet, over a medium flame add mushrooms, heat and stir for 3 minutes add tomato paste and half of the scallions-mix well add the saffron mixture bring just to a boil, reduce heat, and simmer for 2 minutes add crab and tarragon simmer until heated through meanwhile, cook linguini in boiling salted water drain, rinse in hot water, and drain well return to pot add crab mixture-toss gently to mix well transfer to a serving platter garnish with the remaining scallions serve hot |