What is Filling?
Fillings refer to custards, cream, jams, and other spreadable ingredients that can be used to fill dessert items; such as eclairs, donuts and both sweet and savory items. The fillings range in flavor from sweet, fruity, chocolatey, and more. The textures range too, from light and airy to rich and creamy, or gooey and gel-like.
What does Filling Taste Like?
...Sweet is one of the five main tastes. It has smooth and round notes in its flavor profile. Sweet is a naturally occurring flavor in many foods, including fruits, berries, winter squashes, sugarcane, and honey. The sweet taste in these foods is due to a higher sugar content. Sweetness is characteristic of desserts and is used as an accent in savory foods.