I couldn't find a cooking section anywhere and cookies didn't seem appropriate for healthful eating! 
For some reason, I cannot make a batch of chocolate chip cookies lately! They turn out as thin as pancakes and a terrible texture!
I am a seasoned baker and I've never had this issue. I've tried all the typical things and my latest batch is as bad as ever (if not worse). Here are the things I've addressed:
1) butter vs. margarine....I *am* using butter but this recipe has worked fine for me with butter for years
2) flour measuring...after careful measuring kept failing me, I converted the flour requirements to weight and still have a problem
3) more flour....I added another 1/4c to the second half of the dough and still have the problem
4) temp....the butter is cold when I'm starting, out of the fridge but the house was 68 degrees, so I know it's not overly soft butter
5) overbeating....I used to be in the habit of really creaming the heck out of the butter/sugar but when the cookies first got flat, I read that over-creaming can cause that...since I've tried it both ways with no change
6) I'm using a cold sheet in a preheated oven (and parchment)
7) I don't have an oven thermometer but the oven is less than a year old and this recipe was turning out fine till a few months ago *and* the oven temp seems fine for everything else, including cake and brownies
8) I used brand new baking soda today
I can't think of anything else but I am so frustrated. The cookies have the taste/texture of thinly sliced Pillsbury sugar cookies...they are NOTHING like this recipe should be...and this is the recipe my mom used when I was a baby and it'd always worked for both of us!
Any ideas?

For some reason, I cannot make a batch of chocolate chip cookies lately! They turn out as thin as pancakes and a terrible texture!
I am a seasoned baker and I've never had this issue. I've tried all the typical things and my latest batch is as bad as ever (if not worse). Here are the things I've addressed:
1) butter vs. margarine....I *am* using butter but this recipe has worked fine for me with butter for years
2) flour measuring...after careful measuring kept failing me, I converted the flour requirements to weight and still have a problem
3) more flour....I added another 1/4c to the second half of the dough and still have the problem
4) temp....the butter is cold when I'm starting, out of the fridge but the house was 68 degrees, so I know it's not overly soft butter
5) overbeating....I used to be in the habit of really creaming the heck out of the butter/sugar but when the cookies first got flat, I read that over-creaming can cause that...since I've tried it both ways with no change
6) I'm using a cold sheet in a preheated oven (and parchment)
7) I don't have an oven thermometer but the oven is less than a year old and this recipe was turning out fine till a few months ago *and* the oven temp seems fine for everything else, including cake and brownies
8) I used brand new baking soda today
I can't think of anything else but I am so frustrated. The cookies have the taste/texture of thinly sliced Pillsbury sugar cookies...they are NOTHING like this recipe should be...and this is the recipe my mom used when I was a baby and it'd always worked for both of us!
Any ideas?










( It's : then scratch )
on your post & interested to see what the problem was. 