I made these a few days ago and want to solve my problem...the taste was incredible...they just flattened out a lot in the oven so they didn't look as pretty and the next day when taking them to a friend, the thin edges kept breaking. I read online about what makes cookies go flat....I think maybe the butter melted faster than everything cooked (I do live in AZ and it is quite hot here in the summer). Any suggestions? I want my cookies to look like those in your picture. I measured everything and did the extra yolk. Dear Megan: Sometimes it's the peanut butter! If you're using a natural-style version, the extra oil can create the symptoms you describe. You might also try adding an extra white instead of an extra yolk; the extra protein in the white may help hold the cookie together better. One more thing to try is chilling the cookies after you flatten them slightly, before you bake them. That would give the protein in the flour and eggs a chance to set before the butter runs away with everything. Good luck! Susan

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