I think cookies are sort of the unsung sweet, you know? They're incredibly popular. But everybody thinks of cakes and pies and fancier desserts before they think cookies. A plate of cookies is a great way to end dinner and really nice to share at the holidays.
I believe in eating smaller meals more often throughout the day to keep the metabolism going. Don't deprive yourself, just make better choices. At 50 years old it is definitely a lot harder to stay in shape then it was when I was in my 20's.

