Margarine (Best Option)
1:1 by volume (e.g., 1 tablespoon margarine per 1 tablespoon butter)Margarine is formulated to mimic butterβs fat content and melting characteristics, which are crucial for achieving the golden-brown crust and rich mouthfeel in French toast. The water content in margarine also helps with the Maillard reaction, enhancing flavor and texture.
When using margarine, ensure it is not a low-fat variety, as reduced fat can affect browning and texture. Use it as you would butter, melting it in the pan before adding the soaked bread.
The final result is very close to traditional butter-based French toast, with only a subtle difference in flavor that most people do not detect.