Over-kneading naan dough results in a tough, chewy texture due to excessive gluten development, making it difficult to roll out and resulting in a less tender final product.
Naan dough relies on gluten development for its characteristic elasticity and ability to trap air, creating those desirable bubbles during cooking. Kneading develops this gluten. However, over-kneading takes this process too far. When you over-knead, the gluten strands become too tight and dense. This leads to several problems:
Tough Texture: The excessive gluten makes the naan chewy and hard to bite through.
Difficult to Roll: The dough becomes very elastic and resists being rolled out thinly. It springs back, making it frustrating to work with.
Less Tender Naan: The final naan will lack the soft, slightly airy texture that is characteristic of well-made naan.
The ideal kneading time for naan dough is typically around 5-7 minutes, or until the dough is smooth and elastic but not overly tight.
If you suspect you've over-kneaded your naan dough, let it rest for a longer period (30-60 minutes). This allows the gluten to relax slightly, making it easier to roll out, although the texture may still be somewhat tougher than ideal.