Proziaki Proziaki Proziaki, soda bread - flour-based rolls with added sodium bicarbonate ("proza") originating from Subcarpathia in south-eastern Poland, also common in other parts of the country. Proziaki are produced by the use of wheat flour or wheat-secale flour, eggs, sour smietana (sour cream), water, salt and a maximum of one table spoon of sodium bicarbonate, baked on traditional tile-based cookers, heated by firewood. Proziaki can be circular shaped (diameter of 6-10 cm, thickness of around 1.5 cm) or quadrilateral. Presently, most proziaki are baked on an oven pan with a small amount of fat or lard ("smalec"). Sweet variants can
Sodium bicarbonate salt has many related names such as baking soda, bread soda, cooking soda, and bicarbonate of soda. In colloquial usage, the names sodium bicarbonate and bicarbonate of soda are often truncated; forms such as sodium bicarb, bicarb soda, bicarbonate, and bicarb are common. The word "saleratus", from Latin "sal æratus" meaning "aerated salt", was widely used in the 19th century for both sodium bicarbonate and potassium bicarbonate. It is known as one of the E number food additives E500. The prefix "bi" in "bicarbonate" comes from an outdated naming system and is based on the observation that twice as much