Bánh cáy is a variety of bánh

Bánh

Bánh is a Vietnamese term, translating loosely as "cake" or "bread", that refers to a wide variety of prepared foods. With the addition of qualifying adjectives, bánh refers to a wide variety of sweet or savoury, distinct cakes, buns, pastries, sandwiches, and food items from Vietnamese cuisine,...

made in the Thai Binh Province

Thai Binh Province

Thái Bình is a coastal eastern province in the Red River Delta region of northern Vietnam, named after the Vietnamese name for the Pacific Ocean: Thái Bình Dương...

 of northern Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

. It is made of sticky rice

Glutinous rice

Glutinous rice is a type of short-grained Asian rice that is especially sticky when cooked. It is called glutinous Glutinous rice (Oryza sativa var. glutinosa or Oryza glutinosa; also called sticky rice, sweet rice, waxy rice, botan rice, biroin chal, mochi rice, and pearl rice, and pulut) is a...

, sugar

Sugar

Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

, gac

Gac

Momordica cochinchinensis is a Southeast Asian fruit found throughout the region from Southern China to Northeastern Australia.-Etymology:It is commonly known as gac, from the Vietnamese gấc or quả gấc...

 or gardenia

Gardenia

Gardenia is a genus of 142 species of flowering plants in the coffee family, Rubiaceae, native to the tropical and subtropical regions of Africa, southern Asia, Australasia and Oceania....

, sesame

Sesame

Sesame is a flowering plant in the genus Sesamum. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is cultivated for its edible seeds, which grow in pods....

, carrot

Carrot

The carrot is a root vegetable, usually orange in colour, though purple, red, white, and yellow varieties exist. It has a crisp texture when fresh...

s, mandarin orange

Mandarin orange

The orange, also known as the ' or mandarine , is a small citrus tree with fruit resembling other oranges. Mandarin oranges are usually eaten plain or in fruit salads...

 peel, and lard. The mixture is roasted and ground, then put into a square box. It resembles the eggs of the còn cây,a small crab in northern Vietnam which lives in rivers and rice paddies, from which this bánh derives its name. Bánh cáy is traditionally served with tea.