All-Purpose Flour (Best Option)
1 cup per 1 cup bread flourAll-purpose flour has a protein content ranging from 10-12%, which is lower than bread flour's 12-14%, but still sufficient to create a good gluten network. This gluten development helps the bread maintain structure when soaked in the egg custard, preventing it from becoming overly soggy or falling apart.
When using all-purpose flour, ensure the bread is slightly stale or toasted to improve absorption and prevent excessive sogginess. Monitor soaking time to avoid oversaturation.
The final French Toast will be tender with a slightly less chewy bite compared to bread flour, but still very close in texture and flavor, making it an excellent and practical substitute.