c. flour<br>

Cake flour is a soft wheat flour milled to an exceptionally fine texture, typically containing 7-9% protein content, significantly lower than all-purpose flour. Produced by grinding the endosperm of soft wheat varieties, cake flour is bleached during processing to further lighten its color and enhance its gluten-dispersing properties. The fine granulation and low protein content result in minimal gluten development, yielding tender crumbs and a delicate structure in baked goods. Its silky texture distinguishes it from other wheat flours and makes it the preferred choice for achieving the light, moist crumb structure characteristic of quality cakes and pastries.

Cake flour originated in North America in the late 19th century as mills developed techniques to create flours specifically suited to tender cake production. It remains a staple in Western baking, particularly in American and European pastry traditions.

Cake flour is used primarily in tender cake batters, where its low protein content prevents excessive gluten development and ensures a fine, uniform crumb. It is the foundation ingredient for layer cakes, cupcakes, sponge cakes, and delicate pastries. Beyond cakes, it is employed in certain cookie doughs, pie crusts, and quick breads where a tender texture is desired. The flour is also useful in creating lighter sauces and roux due to its fine particle size, which promotes smooth integration. In professional patisserie, cake flour is often combined with other flours or starches to achieve specific textural objectives in complex pastries and confections.