All-Purpose Flour (Best Option)
1 cup all-purpose flour per 1 cup cake flourAll-purpose flour has a protein content typically between 10-12%, higher than cake flour but lower than bread flour, which allows for adequate gluten formation necessary for pasta dough structure. This gluten network provides the elasticity and chewiness expected in pasta.
When substituting, you can slightly reduce the amount of flour or add a small amount (about 1 tablespoon per cup) of cornstarch to mimic cake flour’s lower protein content if a more tender dough is desired. Watch the dough hydration as all-purpose flour absorbs slightly more water.
Compared to cake flour, pasta made with all-purpose flour will be a bit firmer and more elastic, which is generally preferred for traditional pasta textures.