Mussels in Green Sauce (Mejillones en Salsa Verde Madrid)

4 dozen large green mussels

1 C. butter

2 T. flour

1⁄2 C. dry white wine

1⁄2 C. fresh parsley

6 fresh garlic cloves

1 large shallot

1⁄8 C. lemon juice

1⁄8 tsp. salt

1⁄8 tsp. ground black pepper

1⁄2 C. clam juice

Scrub the mussels under the faucet and remove the beards, and then set aside. In a 6 quart saucepot place butter, flour, wine, lemon juice and clam juice and bring to a boil over high heat. Add the mussels and return to a boil. Reduce heat to low and simmer covered 3 minutes or until mussels are opened. With a slotted spoon remove mussels to 2 or 4 deep serving bowls or dishes and set aside. Place the liquid into a blender or food processor and add the parsley, garlic cloves, shallot, salt and pepper and blend well. Pour the sauce over the mussels and serve with a French or Italian bread to sop up the wonderful sauce.