
Not refrigerated dough, but refrigerating the stuff you make at home.
Refrigeration allows the dough and other ingredients to fully soak up the liquid — in this case, the eggs — in order to get a drier and firmer dough, which bakes to a better consistency. For a chocolate chip cookie recipe, a long hydration time is important because eggs, unlike water, are gelatinous and slow-moving and the butter coats the flour preventing the liquid from getting through to the dry ingredients. The extra time in the fridge dispatches that problem.
Some bakers suggest overnight, others days. Anywhere from 12-72 hours. 36 hours is the most recommended. If you can wait that long.
Refrigeration allows the dough and other ingredients to fully soak up the liquid — in this case, the eggs — in order to get a drier and firmer dough, which bakes to a better consistency. For a chocolate chip cookie recipe, a long hydration time is important because eggs, unlike water, are gelatinous and slow-moving and the butter coats the flour preventing the liquid from getting through to the dry ingredients. The extra time in the fridge dispatches that problem.
Some bakers suggest overnight, others days. Anywhere from 12-72 hours. 36 hours is the most recommended. If you can wait that long.

