choc chip cookies

[lovescooking]

I made choc chip cookies and the butter was really soft and the cookies came out flat. I kept the dough in the refriderator between batches. I use 2/3 cup of butter and 2/3 cup of crisco to 3 cups of flour , 1 cup sugar and 1 cup brown sugar. I make them all the time and 2 ot of 3 times this happens.
Does anyone have a better receipe or suggestions.
Thanks to all

[katecm]

My mother had the same problem until I figured out that she was overmixing her dough. Next time, try to under-mix a bit? Finishing with a wooden spoon helps.