Yes, resting pancake batter for 5-15 minutes allows the gluten to relax and the leavening agents to work, resulting in lighter, fluffier pancakes.
Resting pancake batter is a crucial step for achieving the best texture. When you mix pancake batter, gluten develops. Gluten is a protein found in wheat flour that, when hydrated and agitated, creates elasticity. Too much gluten development in pancake batter leads to tough, chewy pancakes. Resting the batter allows the gluten strands to relax, resulting in a more tender pancake.
Additionally, most pancake recipes contain a leavening agent like baking powder or baking soda. These agents produce carbon dioxide gas, which creates air bubbles in the batter, making the pancakes light and fluffy. Resting the batter gives these leavening agents time to fully activate and distribute evenly throughout the mixture. This ensures a consistent rise and a lighter texture. A resting time of 5-15 minutes is generally sufficient. You'll notice the batter thickens slightly and small bubbles may appear on the surface, indicating the leavening agents are working.
Avoid overmixing pancake batter, even before resting. Overmixing develops too much gluten, negating the benefits of resting. Mix just until the dry ingredients are incorporated, leaving small lumps. These lumps will disappear during the resting period.