Whether you’re on the coast of California or Maine, or tucked into a bistro in France, there’s no sight more welcoming on a frigid night than a cast-iron pan heaping with steamed mussels, cracked open just wide enough to flood their shells with hot, garlicky broth and fresh herbs. When buying mussels, look for mussels that have tightly closed shells and that smell fresh and briny like the ocean. One or two cracked shells isn’t a huge concern (it happens!), but if the majority of the mussels are open or show cracked shells, move on to another batch — these are signs that the mussels are old or have been poorly handled. Clean and debeard the mussels. If any mussels are opened, tap them lightly on a hard surface. If they don't close, discard them. Heat the olive oil in a wide, heavy-based pan. Add the shallots and. Recipe developer and food photographer Kristen Stevens of The Endless Meal takes the fright factor out of cooking mussels. I know that mussels can be intimidating if you've never made them before but trust me, they are very easy to make. Mussels are mighty tasty but often thought to be tricky to prepare. Watch as Sally reveals her top tips for how to cook mussels and shows you just how easy it can be. Subscribe to the Sainsbury's. How to Cook Mussels. Mussels are a tasty shellfish that can be steamed, boiled, grilled, roasted, or cooked in a variety of other ways. They taste great on their own, paired with french fries or crusty bread, or mixed into a seafood dish. How to clean, prepare and cook mussels. Points to remember. Sort through mussels, tapping any that are open lightly on a surface to see if they close shut. How To Cook Mussels. Here's a simple how-to for steamed PEI Mussels. Rinse and stir mussels under cold running fresh water. Mussels naturally open and close their shells when out of water. For any mussels that do not close after rinsing, tap their shells or lightly squeeze them while running under the water again. Whether you want to steam, roast, or grill mussels, these shellfish are extremely forgiving and can be made into varied preparations.No matter how you choose to cook them, start with impeccably fresh and well-cleaned mussels. Most mussels for sale in the U.S. are farmed and come to the market fairly clean, but it's a good practice to give them a good rinse in cool water and a light scrubbing.