I just got a set of these in the mail today:
http://www.williams-sonoma.com/products/1401215/?pkey=ccookie-cutters-pancake-molds&cm_src=hero
and on the box they have the prettiest cookies made with red or green dough. I haven't colored dough before, assume you add it to the wet ingredients. Do you need to make the color deeper than what you want it to be, because the flour will lighten the color?
Some experimenting is probably in order.
What a great idea! Thank you for sharing this with us! I think I just might try them this year. However, like you, unless someone comes up with amounts, I'll be experimenting with the colors, too! 
Those are really cool.
I've only tried to color dough once and it didn't work well for me. I tried to make pink cookies with a strawberry extract for the corresponding flavor. The cookies were sort of brownish pink and did not look great at all. Maybe a darker color would work, i don't know.
It's been a while, but I don't remember adjusting anything when adding Jello. It's easy to tell by tasting the dough. (I always taste, that's saved me a time or two from baking too-salty cookies.)
If you try Koolaid, you get a sweet-tart effect because of the ascorbic acid. Some hate it, others love it.
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I guess I'll be baking all these again, the grandkids have started arriving.
When I was little, my mother used to bake spritz cookies every Christmas season, some she would dye green or red - the colors came out great when she didn't overbake them! LOL. And at that time, the only dyes available were the liquid type.
I just did a whole mess of halloween cookies in lime green and orange and they came out great. I use AmeriColor Gels which makes it super easy to achieve the color you want, and ditto what the poster above said...bake till just set, dont let them brown at all. Theyll look great youll see. Ill post my pics later.
Thanks for the replies!
I just did a whole mess of halloween cookies in lime green and orange and they came out great. I use AmeriColor Gels which makes it super easy to achieve the color you want, and ditto what the poster above said...bake till just set, dont let them brown at all. Theyll look great youll see. Ill post my pics later.
Do you have an idea of how much color you mixed in? Can't wait to see your pics!
Jello sounds kind of interesting too!
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