Ricotta is an Italian whey cheese made from sheep, cow, goat, or Italian water buffalo milk whey left over from the production of cheese. Like other whey cheeses, it is made by coagulating the proteins that remain after the casein has been used to make cheese, notably albumin and globulin.
Ricotta (literally meaning "recooked") protein can be harvested if the whey is first allowed to become more acidic by additional fermentation (by letting it sit for 12–24 hours at room temperature). Then the acidified whey is heated to near boiling. The combination of low pH and high temperature denatures the protein and causes it to precipitate, forming a fine curd. Once cooled, it is separated by passing the liquid through a fine cloth, leaving the curd behind.

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A doughnut or donut is a type of fried dough confectionery or dessert food. The doughnut is popular in many countries and prepared in various forms as a sweet snack that can be homemade or purchased in bakeries, supermarkets, food stalls, and franchised specialty outlets. Doughnuts are usually deep-fried from a flour dough, and typically either ring-shaped or without a hole, and often filled. Other types of batters can also be used, and various toppings and flavorings are used for different types, such as sugar, chocolate, or maple glazing. In addition to flour, doughnuts may also include such ingredients as water, leavening, eggs, milk, sugar, oil/shortening, natural flavors and/or artificial flavors.

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The sweet potato or kumara (Ipomoea batatas) is a dicotyledonous plant that belongs to the family Convolvulaceae.
Its large, starchy, sweet-tasting, tuberous roots are a root vegetable. The young leaves and shoots are sometimes eaten as greens. Ipomoea batatas is native to the tropical regions in the Americas. Of the approximately 50 genera and more than 1,000 species of Convolvulaceae, I. batatas is the only crop plant of major importance—some others are used locally (e.g. I. aquatica (kangkong)), but many are poisonous. The sweet potato is only distantly related to the potato (Solanum tuberosum) and does not belong to the nightshade family.

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Castella (カステラ Kasutera) is a popular Japanese sponge cake made of sugar, flour, eggs, and starch syrup.
Now a specialty of Nagasaki, the cake was brought to Japan by Portuguese merchants in the 16th century. The name is derived from Portuguese Pão de Castela, meaning "bread from Castile". Castella cake is usually sold in long boxes, with the cake inside being approximately 27 cm long. It is somewhat similar to Madeira cake, also associated with Portugal, but its closest relative is pão-de-ló, also a Portuguese cake.
There are similar types of sponge cakes named after the same fashion, in French: Pain d'Espagne, in Italian: Pan di Spagna, in Portuguese: Pão de Espanha, in Romanian: Pandişpan, in Bulgarian: пандишпан, in Greek: Παντεσπάνι, in Turkish: Pandispanya (Castile is a former kingdom of Spain comprising its central provinces, thus Pain d'Espagne and other variants are quasi-synonymous to "bread from Castile").

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Dried and salted cod, sometimes referred to simply as salt cod, is cod which has been preserved by drying after salting. Cod which has been dried without the addition of salt is stockfish. Salt cod was long a major export of the North Atlantic region, and has become an ingredient of many cuisines around the Atlantic and in the Mediterranean. With the sharp decline in the world stocks of cod, other salted and dried white fish are sometimes marketed as "salt cod", and the term has become to some extent a generic name.

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Fiadone is a Corsican cheesecake without bottom layer, made of brocciu, sugar, lemon zest and eggs. The Fiadone can have round or rectangular shape: it is baked in oven and served cold.

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