Irish cuisine century saw the emergence of a new Irish cuisine based on traditional ingredients handled in new ways. This cuisine is based on fresh vegetables, fish (especially salmon and trout), oysters, mussels and other shellfish, traditional soda bread, the wide range of cheeses that are now being made across the country, and, of course, the potato. Traditional dishes, such as Irish stew, coddle, the Irish breakfast, and potato bread have enjoyed a resurgence in popularity. Chef and food writer Myrtle Allen - an early protagonist of such attitudes and methods - went on to play a crucial role in their development
Baking powder present, some of the baking powder should be replaced with baking soda. For example, one cup of flour, one egg, and one cup of buttermilk requires only ½ teaspoon of baking powder—the remaining leavening is caused by buttermilk acids reacting with ¼ teaspoon of baking soda. However, with baking powders that contain sodium acid pyrophosphate, excess alkaline substances can sometimes deprotonate the acid in two steps instead of the one that normally occurs, resulting in an offensive bitter taste to baked goods. Calcium compounds and aluminium compounds do not have that problem, though, since calcium compounds that deprotonate twice are