The ideal resting time for samosa dough before rolling is typically 30 minutes to 1 hour. This allows the gluten to relax, resulting in a more pliable and easier-to-roll dough.
Resting the samosa dough is a crucial step in achieving the desired texture. When you mix flour and water, gluten develops, which can make the dough elastic and difficult to work with immediately. Resting allows the gluten strands to relax and unwind. This relaxation process makes the dough more extensible, meaning it can be stretched and rolled out thinly without tearing or snapping back. A well-rested dough will also be less prone to shrinking during cooking, resulting in samosas with a more consistent shape and texture. The resting time can vary slightly depending on the recipe and the type of flour used, but a general guideline is 30 minutes to 1 hour at room temperature. Cover the dough with a damp cloth or plastic wrap to prevent it from drying out during this period.
If you're short on time, even a 15-20 minute rest is better than no rest at all. However, for optimal results, aim for the recommended 30 minutes to 1 hour.