Which ingredient helps baked goods remain moist and fresher for a longer time?

The ingredient that helps baked goods remain moist and fresher for a longer time is fat. Fat plays a crucial role in the texture and moisture retention of baked goods. When fat is incorporated into a recipe, it coats the flour particles, which helps to structure the product and create a tender crumb. This fat creates a barrier that slows down moisture loss during baking and storage, leading to a final product that is not only moist but also has a longer shelf life.

Moreover, fat can contribute to flavor and improve the overall mouthfeel of baked items, enhancing the eating experience. Certain fats, such as butter or oil, not only provide moisture but also add richness, making baked goods more appealing. This characteristic helps maintain the desirable qualities of freshness, taste, and texture even after some time has passed post-baking.