was also popular among native people throughout the land, over many types of terrain. Crustaceans included shrimp, lobster, crayfish, and dungeness crabs in the Northwest and shrimp, lobster and blue crabs in the East. Other shellfish include abalone and geoduck on the West Coast, while on the East Coast the surf clam, quahog, and the soft-shell clam. Oysters were eaten on both shores, as were mussels and periwinkles. Cooking methods Early American natives used a number of cooking methods that have been blended with early European cooking methods to form the basis of American cuisine. Grilling meats was common. Spit roasting over a pit fire was common as well. Vegetables, especially root vegetables, were often cooked directly in the ashes of the fire. As early Native Americans lacked pottery that could be used directly over a fire, they developed a technique many anthropologists call "stone boiling". They heated rocks in a fire, then added the rocks to a pot filled with water until it came to a boil to cook the meat or vegetables. In what is now the Southwestern United States, they also created adobe ovens, dubbed hornos by the Spanish, to bake products such as cornmeal bread. Other parts of America dug pit ovens, which were also used to steam foods by adding heated rocks or embers. One technique performed extensively by New England tribes was adding seaweed or corn husks on top of the layers of stones to steam fish and shellfish as well as vegetables. A later addition was potatoes, a garden plant that came to New England by the 18th century, added while still in skin with corn in husk, later to be referred to as a clambake by colonists. Colonial period The European settlement of the Americas introduced a number of ingredients, spices, herbs, and cooking styles to the continent. When European colonists came to Virginia, Pennsylvania, Massachusetts, and any of the other English colonies on the eastern seaboard of North America, their initial attempts at survival included planting crops familiar to them from back home in England. In the same way, they farmed animals for clothing and meat. Through hardships and eventual establishment of trade with England, the West Indies and other regions, the colonists were able to derive a cuisine similar to what they had previously consumed in Britain and Ireland, while also introducing local animals and plants to their diet. American