Custard filled donuts are sweet pastries that feature a soft, fluffy dough, typically fried until golden brown. They are filled with a creamy custard made from milk, sugar, and eggs, which gives them a rich and smooth texture. The donuts are often dusted with powdered sugar or glazed for added sweetness. These treats are popular in many cultures and can be found in bakeries and cafes around the world. They are enjoyed as a dessert or snack and can be paired with coffee or tea. Variations may include different flavors of custard, such as vanilla or chocolate.