Irish Brown Bread is a hearty, rustic loaf with a dense, crumbly texture and a nutty, rich flavor. Made with wholemeal flour, oats, and buttermilk, it offers a subtle sweetness and a hint of tang. Perfectly crusty on the outside, it pairs wonderfully with creamy butter, soups, or hearty stews. Or how about with a slice of smoked salmon, black pepper, and a wedge of lemon. Or keep it simple, and even more delicious, straight out of the oven with lashings of butter. YUM!!The original recipe, which dates back to 1836, called for only four basic ingredients: flour, salt, bicarbonate of soda, and an acid to engage with the soda. At first, weak hydrochloric acid was used as the acid element; but, for practical reasons, sour milk or buttermilk that was leftover from butter making was eventually used.