Bread dough is a mixture of flour, water, yeast and other ingredients (such as salt or sugar) that is kneaded together to form a smooth, elastic substance. The process of mixing, kneading and rising allows the gluten in the flour to develop, giving the bread its texture and structure. Once the dough has risen sufficiently, it can be shaped into loaves, rolls or other baked goods before being placed in the oven for cooking.