What Went Wrong?

Flat cookies, cakey brownies, a sunken loaf, tough pancakes: the usual causes and what to change next time.

Cookies

Spread thin and flat

Likely causes:
Butter too soft or melted; too little flour; dough put on a warm sheet; oven not fully hot.
Next time:
Use softened, not warm, butter; measure flour carefully; chill the dough 30 minutes; cool sheets between batches.

Puffy and cakey

Likely causes:
Too much flour (scooped cups); too much creaming or too many eggs.
Next time:
Spoon and level the flour, or weigh it; cream just until light.

Dark or burnt bottoms

Likely causes:
Dark baking sheet; rack too low; oven runs hot.
Next time:
Light sheet lined with parchment, middle rack, check your oven with a thermometer (Oven and Pans).

Dry and hard

Likely causes:
Overbaked, or too much flour.
Next time:
Take them out while the centers still look soft.

Uneven batch

Likely causes:
Different-sized scoops; hot spots in the oven.
Next time:
Use a scoop or tablespoon; turn the sheet halfway.

Brownies and bars

Cakey instead of fudgy

Likely causes:
Overbaked; too much flour; too much beating after the flour went in.
Next time:
Pull them when a toothpick shows moist crumbs; fold the flour in gently.

No shiny, crackly top

Likely causes:
Eggs and sugar not beaten enough.
Next time:
Beat the eggs and sugar hard for a minute, as the Fudgy Brownies tip says.

Dry edges, raw middle

Likely causes:
Glass or dark pan; the recipe's full batter in a smaller pan, so it's deeper.
Next time:
Use a light metal pan, or lower the oven by 25°F (15°C) and bake longer (pan size).

Crumble when cut

Likely causes:
Cut while warm.
Next time:
Cool completely in the pan first.

Quick breads and muffins

Sank in the middle

Likely causes:
Underbaked; too much baking soda or powder; oven door opened too early.
Next time:
Check doneness with a skewer, not the clock; measure leaveners with level spoons.

Tough, with tunnels and peaked tops

Likely causes:
Overmixed after the flour went in.
Next time:
Stir only until no dry flour shows (muffin method).

Gummy streak near the bottom

Likely causes:
Underbaked, or too much wet ingredient (very big bananas).
Next time:
Bake until a skewer is clean; measure mashed banana if your bananas are large.

Dark top, raw center

Likely causes:
Oven too hot, or a dark pan.
Next time:
Lay foil loosely over the top once it's brown, as in the Banana Bread tip.

Dense and heavy

Likely causes:
Old leavener; too much flour.
Next time:
Test your baking soda and powder; weigh the flour.

Pancakes

Flat and dense

Likely causes:
Old baking powder; overmixed batter; batter left standing a long time.
Next time:
Test the baking powder; stir until just combined; cook within about 15 minutes.

Tough or rubbery

Likely causes:
Overmixed.
Next time:
Lumpy batter is right.

Burnt outside, raw inside

Likely causes:
Pan too hot.
Next time:
Medium heat; the first pancake is a test.

Pale and greasy

Likely causes:
Pan not hot enough, or too much butter in the pan.
Next time:
Heat the pan longer; brush on a thin layer of butter.

More on pan heat for the stovetop in Grill, Stovetop or Oven?.