Proziaki be produced with the addition of sugar. In numerous Subcarpathian villages the proziaki bakes are diversified by adding buttermilk, cottage cheese or more butter. Traditionally, prozianki are served with fresh butter, cottage cheese or marmalade. The consummation of proziaki is frequently followed by sweet milk. 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,
Buttermilk as "cultured buttermilk", is produced from cow's milk and has a characteristically intense sour taste caused by lactic acid bacteria. This variant is made using one of two species of bacteria—either "Lactococcus lactis" or "Lactobacillus bulgaricus", which creates more tartness. A quick version of buttermilk, known as "acidified buttermilk", is used to make paneer. This version is simply cow's milk with a food-grade acid like lemon juice or vinegar added and left to sit for at least 10 minutes. That is when the milk has curdled. The tartness of buttermilk is due to acid in the milk. The increased acidity