Because there really is no way around the fact that these very large clams — which are pronounced gooey-duck — profanely resemble a certain male appendage. Yes, there is a classic clam shell involved, but stretching out of that shell is a punchline only a tween boy could love.
With that dispensed with, let's get on to why you'd want to hunt down this West Coast delicacy. Geoducks are meaty, briny and fresh, and they are a delicious alternative to what you've come to expect with clams. Think of them as the steak of the clam world. They really are that big, bold and savory (most weight between 1 and 2 pounds).
Like all clams, you need to keep a geoduck alive until ready to prepare. Though the seafood counter may pack it on ice for you to bring home, once home you should store it in salt water in the refrigerator. To make the salt water, mix about 1/2 cup of coarse or kosher salt to a gallon of spring water. Don't use tap water, which can contain fluoride and other additives not good for the clam.
When you are ready to prepare the geoduck, start by rinsing it under cool water to remove any sand. Next, bring a large pot of water to a boil. Add the geoduck (one at a time if preparing multiple clams) and blanch for about 15 to 20 seconds. Use tongs to remove the clam and place it in a large bowl of ice water.
Once the clam is cool enough to handle, use a paring knife to cut through the hinge of the shell to allow it to come apart easily. Discard the stomach and gills. Remove the body and appendage (called the siphon) from the shell. Pull off and discard the outer skill on both the body and siphon. Use a knife to slice both the body and siphon in half lengthwise, then rinse to remove any sand. Pat dry with paper towels and proceed with the recipe.
The meat of both the body and siphon can be sliced and used as desired. The siphon will be tougher and the body will be more tender.
GEODUCK SALAD WITH MANGO AND CHILI
Start to finish: 40 minutes
Juice and zest of 2 limes
Meat from a 1 1/2-pound geoduck clam, thinly sliced
1 large shallot, finely chopped
1 mango, peeled, pitted and finely diced
2 celery stalks, thinly sliced
1 tablespoon grated fresh ginger
1 tablespoon soy sauce
1 tablespoon olive oil
2 tablespoons chopped fresh cilantro
1/2 habanero chili, thinly sliced
Crackers or toasted pita, to serve
In a medium bowl, combine the lime juice and zest with the thinly sliced clam. Cover and refrigerate for 30 minutes. After 30 minutes, stir in the shallot, mango, celery, ginger, soy sauce, olive oil, cilantro and chili. Serve with crackers or pita for scooping.
Nutrition information per serving: 90 calories; 25 calories from fat (28 per cent of total calories); 3 g fat (0 g saturated; 0 g trans fats); 10 mg cholesterol; 12 g carbohydrate; 1 g fiber; 8 g sugar; 5 g protein; 370 mg sodium.