Is cupcakes a pure substance or mixture?

Cupcakes are a mixture. They are composed of many ingredients, including flour, sugar, eggs, butter, milk, and baking powder. Each of these ingredients has its own unique properties. For example, flour is a solid, sugar is a granulated solid, eggs are a liquid, butter is a solid at room temperature but a liquid when melted, milk is a liquid, and baking powder is a solid. When all of these ingredients are combined, they form a homogeneous mixture, which is a mixture that is uniform throughout.