1 and 1/2 lbs of shrimp4 tablespoons of olive oil3 to 4 cloves of garlic, diced1 small onion, finely chopped1 tablespoon of wheat flour1 glass of dry white wine1 tablespoon of chicken broth1 1/2 tablespoon of mustardSalt and pepper (to taste)Parsley or chives (optional)