The primary ingredient in a scone is flour. Typically, all-purpose flour or self-raising flour is used to provide the necessary structure and texture. This base ingredient is combined with butter, sugar, salt, and a leavening agent such as baking powder. Liquid elements, often milk or cream, are added to create a dough that is then baked. Scones can be made plain or include various additions, like fruits or chocolate chips, but flour remains the crucial component for achieving the light, fluffy, and crumbly texture that defines this delightful baked good.