Bisquick baking mix is a pre-made, versatile dry mix that contains flour, shortening, salt, and leavening agents like baking powder. It is designed to save time and effort when making a variety of baked goods, such as pancakes, waffles, biscuits, and even savory dishes like casseroles and pies. The mix eliminates the need to measure and combine multiple dry ingredients, making it a convenient staple for many home cooks.