Interactive brownie troubleshooter

Start with the symptom you can see or feel. Then add the pan, measuring, oven and cooling details that most often separate one plausible cause from another.

What went wrong?

Did you change the pan?

How were dry ingredients measured?

What happened in the oven?

What did the surface look like?

Was the brownie fully cooled before judging it?

How to use the diagnosis

The result ranks practical checks rather than assigning fake probabilities. Change the highest-ranked uncontrolled variable first. If you changed pan size, measuring method and oven position at the same time, returning several variables to the original recipe makes the next test easier to interpret.

Use the Doneness Guide when the main question is whether the centre was actually underbaked, and the Pan Converter if the replacement pan changed batter depth.