
Why Are My Cookies Flat? 7 Causes and the Fix for Each
Cookies come out flat when the dough spreads faster than it sets in the oven.
Chewy chocolate chip cookies come from three choices: melted butter instead of creamed, more brown sugar than white, and a whole egg plus an extra yolk.
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Cookies come out flat when the dough spreads faster than it sets in the oven.

The canon — chocolate chip, sugar, oatmeal — written with weights, cues, and zero guesswork.

Troubleshooting and dough science — fix flat, dry, or cakey cookies for good.