The most basic version of Irish soda bread has only 4 ingredients, and was cooked on an open fire or a stovetop, not baked. Make your soda bread like they did in 1840, with flour, baking soda, salt, and buttermilk. Posted on August 22, 2020 by Caitlin Acosta The most basic version of Irish soda bread has only 4 ingredients, and was cooked on an open fire or a stovetop, not baked. Make your soda bread like they did in 1840, with flour, baking soda, salt, and buttermilk. Advertisement