All-Purpose Flour with Vital Wheat Gluten (Best Option)
1 cup all-purpose flour + 1 tablespoon vital wheat gluten per 1 cup bread flourBread flour has a higher protein content (around 12-14%) than all-purpose flour (about 10-11%). Adding vital wheat gluten increases the protein content of all-purpose flour, helping to develop gluten networks that provide structure and chew without toughness.
For best results, mix the vital wheat gluten thoroughly with the all-purpose flour before adding to the batter. Avoid overmixing the batter to prevent toughness.
Cupcakes made with this substitute will have a texture very close to those made with bread flour, maintaining a good rise and crumb structure without becoming too dense or crumbly.