Soda bread is a type of quick bread that originated in Ireland. It is made with baking soda (sodium bicarbonate) instead of yeast, which gives it a unique texture and taste. The ingredients include flour, salt, buttermilk or soured milk, and baking soda. Soda bread can be eaten on its own or served with various spreads such as butter, jam, or cheese. It is often associated with traditional Irish cuisine and is a popular choice for breakfast or as an accompaniment to meals.