Creaming method builds structure through air incorporation
The creaming method (sugar beaten into soft butter) whips tiny air bubbles into the fat, creating nucleation sites for gas expansion during baking. This produces a fine, even crumb. The high fat content makes the cake tender and moist. It dominates in layer cakes and American-style butter cakes because the result is predictable and forgiving.
Reverse creaming mixes dry flour with butter first, then adds liquid and eggs. This method hydrates flour more gradually, reducing gluten development and producing a softer crumb. It works well for dense, tight-crumb cakes like some pound cakes where that control is desired.
Foam methods rely on air from eggs instead of fat
Foam methods (chiffon, sponge, angel food) whip eggs or egg whites to incorporate large air volumes. Without relying on chemical leaveners or creaming fat, the eggs alone provide lift. Angel food uses only egg whites, producing a lean, tall, airy cake. Chiffon uses whole eggs plus oil, yielding a tender-but-structured middle ground.
One-bowl methods sacrifice air incorporation for convenience, mixing ingredients with minimal equipment. The crumb is denser, but modern cake mixes and recipes engineer chemical leaveners to compensate.