Sweet potato pancake is a fried patty of sweet potato, either grated or mashed.
In the American South, mashed sweet potatoes are mixed with flour, eggs, cinnamon, sugar, and nutmeg, and pan-fried like regular pancakes, then served with butter and syrup. Similar dishes exist in Peru (where sweet potato is called camote).
In the Pennsylvania Dutch region of Pennsylvania, sweet potato pancakes are made with grated sweet potatoes, onions, and egg, producing a product much closer to a latke. A similar dish is found in Ashkenazi Jewish communities, sometimes adding matzo meal.
In Jamaica, grated sweet potato is mixed with coconut milk, nutmeg, allspice, and sugar, and baked or fried as patties.
In Korea, goguma-jeon (고구마전) are made by pan-frying a mixture of mashed sweet potato and flour. They are served as a snack or a side dish.
In Japan, satsumaimo mochi (さつまいも餅) is made by mixing mashed Japanese sweet potato with glutinous rice flour (mochiko), and then pan-fried to make chewy, sweet patties which are sometimes filled with anko red bean paste.