The Value of Work!
Have the delicious cookies sitting on a table and ask the girls how much work went into making the cookies. They should say the usually dumping ingredients into a bowl, mixing them, and cooking them.
But if you really think about how many people helped to make the cookie possible it is amazing. First, the farmer, who planted the wheat, tended it, watered it, and harvested it. Then the people who ground it into flour, and refined it, packaged it, and shipped it to a store. That is just the flour. You could talk about the sugar, chocolate chips, butter, and so on and so forth.
The point is everything we enjoy in life takes work.