Watch out for unclear instructions! I didn't read closely enough, and as a result I added the entire 4.5 cups of flour into the mix. The result was not pretty - very powdery and definitely not a dough. That's when I realized my mistake. To fix it, I creamed together another cup of butter and half cup of brown sugar, and added another half tbsp of vanilla extract (in addition the 1tbsp I put in to begin with) as well as another pinch of salt. Then I continued to incorporate additional flour as needed during the kneading stage. The end result: These things are amazing.

Reviewed On: Mar. 5, 2013