with the mussels i picked in cornwall this year, all i did was put some water (about a pint)in a large sausepan. add lemon juice,clove of garlic, good slosh of wine salt and pepper. brought it to the boil and added the mussels. gave them a stir then put the lid on and let them boil/steem for 30 mins give or take. while they cooked got some nice crusty bread to dip in the sauce. once cooked i discarded the ones that hadnt opened, pored the rest in to a dish including the liquide they cooked in and gobbled them down. they tasted great, this was the first time i had actualy picked mussels from the seashore.