I have attemped 3 (yes, 3!) different shortbread cookie recipes and multiple variations in the last 2 days. Each time the entire batch ends up in the trash. The cookies spread horribly and turned out very very greasy. After the first batch came out of the oven this way, I tried chilling the dough prior to baking. Same result. I then tried to add more flour. Then I tried to replace part of the butter with shortening (I know, not ideal but thought it would help) Lastly, I tried baking on parchment paper rather than the silpat I had been using. Each time I got the same result. At this point, I should probably just give up but it is driving me crazy that I can't figure this out. I know all of you awesome bakers will have some ideas for me.
Please share all of your thoughts and ideas! Thanks in advance.
One more thing I forgot to mention... I also tried baking at both higher and lower temps with no change.