Half-and-Half diluted with water (Best Option)
3/4 cup half-and-half + 1/4 cup water per 1 cup whole milkHalf-and-half has a higher fat content than whole milk, which is crucial for the moist, tender crumb of a pound cake. Diluting it with water adjusts the fat to closely match whole milk's level, preserving the cake's texture and richness.
When using this substitute, ensure thorough mixing to achieve uniform consistency. Avoid over-dilution as it can reduce fat too much, leading to dryness.
The final cake will be very close in texture and flavor to the original recipe, retaining the moistness and richness expected from whole milk.