Sweet fillings are delicious mixtures used in various desserts and pastries to enhance flavor and texture. Common examples include chocolate ganache, fruit preserves, and custard. These fillings can be made from ingredients like sugar, cream, fruits, and spices, providing a delightful contrast to the outer layers of baked goods. In baking, sweet fillings are often found in items such as cakes, tarts, and doughnuts. They can be spread, piped, or layered, adding moisture and sweetness to the final product. The choice of filling can significantly influence the overall taste and appeal of the dessert.