Ethiopia is a mountainous country. This has helped keep it isolated. The food of Ethiopia is therefore uniquely Ethiopian. Ethiopian food is characterized by the spices used. However, grains such as sorghum, millet, teff, and wheat grow well in the temperate climate, and honey is commonly used. Berbere is an essential ingredient in Ethiopian cooking. It is a red paste made of spices and herbs. Flavored butter called niter kebbeh is also important. Niter kebbeh is flavored with onions, garlic, ginger and spices. Wat, or stew is an important traditional Ethiopian food. It can be made with chicken, beef, fish, or be vegetarian. It contains paprika and is very spicy. Wat is eaten with injera, an Ethiopian flatbread made from teff. Coffee is also important in Ethiopia. Ethiopians say it originated in the highlands of Kaffa in southwestern Ethiopia.