Applesauce (Best Option)
1/4 cup per eggApplesauce works well as an egg substitute in pound cake because it provides moisture and acts as a binder, helping to hold the dense batter together. The natural sugars in applesauce also contribute to browning and slight sweetness.
For best results, use unsweetened applesauce to avoid altering the cake's flavor profile. Be mindful that excess moisture can slightly soften the crumb, so avoid adding additional liquids.
Compared to eggs, applesauce yields a slightly moister and softer texture but maintains the dense, rich quality expected in pound cake, making it the closest match among substitutes.