When we think of a baker's ingredient, we often first picture flour, sugar, butter, and eggs. However, there are a variety of other items that could also be considered essential. For example, yeast or baking powder for leavening, salt to enhance flavor, and vanilla extract to add depth. Brown sugar, honey, or molasses can also be used instead of white sugar to create a richer, deeper flavor. Additionally, other types of flours like almond or coconut flour are popular choices for gluten-free baking. Lastly, fruits, nuts, chocolate chips, and spices like cinnamon or nutmeg can all be used as flavor additions to any baked good.