All-Purpose Flour (Best Option)
1:1 by volumeAll-purpose flour contains moderate protein and starch levels, making it effective for thickening liquids like salad dressings without imparting a strong flavor. Its starch gelatinizes upon heating or emulsification, helping to stabilize the dressing.
When substituting, use the same amount as bread flour. Ensure the flour is well incorporated to avoid lumps and cook briefly if the dressing is heated to activate thickening.
Compared to bread flour, all-purpose flour results in a slightly less elastic texture but this is ideal for salad dressings where gluten development is unnecessary, preserving a smooth and balanced consistency.