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 contains roughly 10-12% fat, which is higher than whole milk's 3.5-4%. Diluting it with water reduces the fat concentration to approximate whole milk, maintaining the custard's richness and mouthfeel. This balance helps the bread soak up the mixture evenly without becoming overly dense.
For best results, mix thoroughly before dipping the bread and avoid over-soaking to prevent sogginess. Monitor cooking time as the slightly richer mixture may brown faster.
Compared to whole milk, this substitute yields a French toast with a similar creamy texture and flavor, preserving the traditional custard quality without making it too heavy or watery.