Why Do My Cookies Always Spread So Much?

Good Questions

Q: Why is it that every time I use butter in a Toll House mix box or from scratch they spread out as thin as paper? I do everything by the book. What would be wrong? I'm tired of wasting ingredients.

Sent by Lois

Editor: My best guess is that your oven temperature is off. Pick up an oven thermometer next time you're at the grocery store and give your oven a check!

Readers, any other ideas?

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(Image credits: Emma Christensen)